Skip to content
AlternativeMed
Remember tasks and appointments: a wooden table by a window with a closed notebook and pencil, a ceramic dish holding keys and reading glasses, a glass of water and a small green plant.

Focus & Memory

Remember Tasks & Appointments

Remembering to do something later, such as calling the dentist, taking out the bins or turning up on Thursday at ten, is a different skill from remembering what you learned yesterday, and it fails for almost everyone sometimes. This page covers the habits and tools that help most, from if-then plans to phone reminders, and says plainly how strong the evidence is.

General information, not medical advice. Last updated October 31, 2026. Written by the AlternativeMed editorial team. Not medically reviewed.

Start here

  • Turn each important task into an if-then plan: "When I get in the car on Friday, I will phone the clinic." In a meta-analysis of 36 comparisons, plans like this gave a medium improvement in remembering planned actions.
  • Put the reminder where the moment will happen: a calendar alert with the time and place, a note on the door, the keys or the phone. Text reminders raised the share of people who turned up to healthcare appointments in a Cochrane review.
  • Protect your sleep and keep one trusted place for your list and calendar. If forgetting is new, getting worse, or is causing real problems, see a doctor rather than just adding more alarms.

Be careful with

  • Occasional missed tasks and appointments are common and are not a diagnosis. Forgetting that is new for you, keeps getting worse, or leads to real problems such as missed medicines, bills or getting lost, needs a conversation with a doctor.
  • Do not rely on a supplement to fix memory. The large ginkgo trial found no benefit, and the other supplements we read about were not tested on remembering tasks. Nothing here should replace advice from your doctor or pharmacist, and never stop a prescribed medicine because of something you read online.
  • Reminders are a tool, not a cure. For anything where a missed task could harm you or someone else, such as medicines or caring duties, use more than one cue and ask a family member, carer or pharmacist to help build a safety net.

Get help when

  • Sudden confusion, trouble speaking, weakness on one side of the body, a severe headache or fainting needs urgent medical care. Call your local emergency number; do not wait to see if it passes.
  • See a doctor if forgetting is getting steadily worse, you repeatedly get lost in familiar places, miss medicines or bills, or others have noticed the change. See when memory changes need a check-up and the page on mild cognitive impairment and dementia.
  • Talk to a doctor if you have always found it very hard to keep track of tasks and time, or if you recognise lifelong attention difficulties; adult ADHD is one possible explanation that can be assessed.
  • Low mood, constant worry, heavy tiredness, snoring with pauses in breathing, or a new medicine can all affect memory. Speak to a doctor or pharmacist; do not stop a prescribed medicine on your own.

About Remember Tasks & Appointments

What this goal means

Researchers call remembering to do something at a later time prospective memory. It covers appointments, passing on a message, taking something with you, paying a bill or doing a job at a certain time. It is a different thing from retrospective memory, which is remembering what happened or what you learned.

This page is about the practical side: plans, cues, reminders and routines. Normal forgetfulness of names and facts is on Improve Everyday Memory, learning new material is on Learn & Retain New Information, and concentration is on Improve Your Concentration.

1

Common experiences

People describe walking into a room and forgetting why, remembering a task only when it is too late, forgetting to bring something, or missing an appointment they knew about. Some tasks are tied to an event ("when I see Sam, give him the book") and some to a time ("call at 3 pm"). In a meta-analysis of laboratory studies, older participants did worse than younger ones on both time-based and event-based tasks, and the gap was largest for event tasks that needed more deliberate, strategic effort, not for tasks supported by a clear cue.

1

Contributing factors

Poor sleep is one factor with evidence behind it. A meta-analysis of 24 samples (165,432 people) found a small-to-medium benefit of sleep on prospective memory (d = 0.41), and the benefit seemed larger when a task could be recalled spontaneously from a cue.

Other factors are a busy mind, interruptions, tasks with no natural cue, and being tired, stressed or distracted. A study of 47 non-users and 53 recreational drug users found the users did worse on a lab test of prospective memory, even after adjusting for age, sleep quality, general health and alcohol use. Some medicines also affect memory; see our page on medicines, sleep, mood and memory.

2,3

Relevant conditions

Trouble remembering to do things is reported in several conditions. A special issue reviewing prospective memory in clinical populations covered people with ADHD, brain injury, mild cognitive impairment and Parkinson's disease, and called for assessment and management strategies. This page does not diagnose any of them. Sleep problems, low mood and anxiety also affect memory, and have their own condition pages.

4

Realistic expectations

Most of the research on if-then plans is in laboratory tasks with students and older volunteers, so results in busy real life may be smaller. Good tools help you catch most tasks; they do not make a memory perfect.

Memory training for older adults gave a moderate short-term gain in a meta-analysis (g = 0.54) but no significant long-term gain (g = 0.20), so skills need to become habits to last.

5,6

Who it applies to

Everyone who juggles appointments and tasks: workers, students, parents, carers and older adults. Interestingly, a meta-analysis of 138 studies found older adults did better than younger adults on realistic tasks done at home, especially to-do lists and diary tasks, but worse on tasks far from daily life. Familiar routines and a written list appear to help at every age.

7,1

Related conditions and symptoms

Memory changes: when to get help → Mild cognitive impairment and dementia → ADHD in adults → Medicines, sleep, mood and memory → Insomnia → Sleep apnoea → Anxiety disorders →

A manageable starting plan

An educational starting point, not a personal prescription. Adjust it to your own situation and any advice from your clinician.

Your first actions

  • Pick one calendar and one list, and put every appointment and task into them as soon as it is agreed.
  • Turn the three most important tasks this week into if-then plans with a clear cue and action.
  • Protect your sleep window, since sleep benefits prospective memory.
  • Give your keys, wallet, glasses and phone a fixed home by the door.

Optional additions

  • Switch on reminder texts from your clinic, dentist or school, and keep your number up to date.
  • Add a second cue for medicines or caring duties, such as a pill box in a place you pass every morning, plus a person who checks.
  • Do a 10-minute weekly review of the week ahead.
  • Ask an occupational therapist or memory service for help if you or a relative have memory problems.

What to track

  • How many tasks or appointments you missed each week, and what the cue was.
  • Whether you had an if-then plan or a reminder for each miss.
  • Hours slept and how rested you felt.
  • Any change over time: more lapses, getting lost, or others noticing.

When to reassess

Give a new system two to four weeks. If you still miss important things, add a second cue or ask someone to help. If forgetting is getting worse, is new for you, or affects safety, stop adjusting tools and see a doctor.

When to seek professional support

  • Talk to a doctor about forgetting that is new, worsening or causing problems.
  • Ask a pharmacist about medicines that could affect memory, and before taking any supplement.
  • Ask family or friends to be a backup for the one or two things that matter most.
  • Urgent help for sudden confusion, speech trouble, one-sided weakness or severe headache.

What helps

Ordered by how well the research supports each step. Evidence strength is shown on every card; precautions sit next to the advice.

Start here

If-then plans (implementation intentions)

Moderate certainty

Addresses: Better odds of remembering a planned action

Why it may help: A meta-analysis with 36 comparisons found that forming an "if situation Y happens, then I will do X" plan improved prospective memory in healthy young adults with a medium effect (d = 0.445). The combined verbal-and-imagery form did better (d = 0.590), and in older adults the effect was medium to large (d = 0.680). In young adults the plans slightly slowed performance on the ongoing task (d = 0.224).

How to apply it: Pick a clear cue you will definitely meet, then link the action: "When I put the kettle on, I will take my tablets," or "When I leave the office, I will book the appointment." Say it out loud and picture yourself doing it.

Who it may suit: Anyone with tasks that have a clear place, event or moment attached.

Precautions: Most studies were laboratory tasks, so the size of the benefit in daily life is uncertain. Do not rely on one cue alone for anything safety-critical.

5

Manage Distractions →

Reminders and lists you will actually see

Moderate certainty

Addresses: More tasks done, fewer missed appointments

Why it may help: A Cochrane review of eight trials (6,615 people) found text-message reminders raised attendance at healthcare appointments compared with no reminder (risk ratio 1.14), with similar results to phone calls. Attendance was 67.8% with no reminder and 78.6% with text reminders. The authors rated the evidence low to moderate because the studies differed a lot. Separately, a meta-analysis found older adults did particularly well on to-do list and diary tasks done at home.

How to apply it: Put every appointment into one calendar the moment it is made, with an alert and the place. Keep a single running to-do list. Switch on the reminder texts your clinic, dentist or school offers.

Who it may suit: Almost everyone, particularly people with busy schedules or many appointments.

Precautions: A reminder only helps if you notice it and act on it. For medicines or caring duties, add a second cue and a trusted person. Check that your phone's notifications are not silenced.

8,7

Enough, regular sleep

Moderate certainty

Addresses: Better memory for planned tasks

Why it may help: A meta-analysis of 24 samples found sleep benefited prospective memory (d = 0.41, 95% CI 0.25 to 0.56), a small-to-medium effect. The authors also noted that earlier evidence had been mixed and that the benefit was larger for tasks that could be recalled spontaneously from a cue.

How to apply it: Keep a steady sleep window and wind down before bed. Our sleep pages cover timing, falling asleep and staying asleep in detail.

Who it may suit: Anyone who is regularly short of sleep.

Precautions: Snoring with pauses in breathing, or heavy daytime sleepiness despite enough hours, needs a medical check rather than more self-help.

2

Build a Healthy Sleep Schedule → Fall Asleep Faster →

Additional options

One home for keys, wallet, glasses and the things you must take

Low certainty

Addresses: Fewer "where is it" and "did I bring it" lapses

Why it may help: A meta-analysis of 138 studies found older adults outperformed younger adults on tasks close to real life done at home, which the authors link to familiarity with the setting. A fixed place and routine make the cue part of the surroundings instead of something you have to hold in mind. We did not find a trial of a key-bowl itself.

How to apply it: Choose one spot by the door. Put whatever you must take tomorrow on top of your keys the night before.

Who it may suit: Anyone, especially people who leave the house in a rush.

Precautions: A routine can break when life changes (a trip, a new job). Rebuild the cue deliberately.

7

Set the reminder for the moment of action, not only the date

Low certainty

Addresses: Fewer reminders that fire at the wrong time

Why it may help: An if-then plan works by linking an action to a cue. The same logic applies to alerts: the meta-analysis of plans found links to specific situations helped memory. We found no trial that compared alert times directly, so this is practical guidance based on how the plans work.

How to apply it: Add the place and what to bring in the alert text. Use location or time alerts that match when you can act, such as "when I leave work" rather than "in the morning".

Who it may suit: People who set alerts but still miss tasks.

Precautions: Too many alerts can become noise. Keep the important ones distinct, for example one sound for medicines.

5

Check your own confidence

Low certainty

Addresses: A better balance between trusting memory and setting reminders

Why it may help: In three experiments, people were biased toward setting external reminders even when they would have scored higher relying on memory, partly because they under-rated their own memory. The bias was removed when they received advice about which strategy would work best. The tasks were laboratory memory games, not real appointments.

How to apply it: For small, low-stakes tasks that you remember well, trust yourself; for appointments, medicines and anything with a deadline, set the reminder. If you notice you often get it wrong, track your misses for a week.

Who it may suit: Anyone who either over-relies on reminders or never uses them.

Precautions: This research was done with healthy volunteers in a lab. If you or others keep seeing real problems, use more support, not less.

9

A weekly review of your list and calendar

Not enough evidence

Addresses: Catches tasks that slipped through

Why it may help: We did not find a trial of weekly reviews. It is a practical habit that fits the evidence on lists, calendars and cues, because it moves tasks from memory onto a page and checks that each has a cue.

How to apply it: Choose a weekly 10-minute slot, such as Sunday evening. Check the coming week, add a cue to each task, and move tasks you have deferred.

Who it may suit: People with many commitments.

Precautions: If the review itself keeps getting forgotten, link it to an existing habit such as your Sunday meal.

Ask for the reminder service

Moderate certainty

Addresses: Fewer missed health appointments

Why it may help: The Cochrane review found text reminders to be about as effective as phone call reminders and cheaper, though harms were poorly reported. Ask your clinic, dentist or hospital how they send reminders and give them a number you check.

How to apply it: Provide a current mobile number, ask for reminders by text, and confirm the time as you leave.

Who it may suit: Anyone attending regular health appointments.

Precautions: Keep your number up to date and do not reply to messages from numbers you do not recognise with personal details.

8

Still being studied

Reminder and voice-recorder apps for memory problems

Low certainty

Addresses: Better everyday remembering in people with mild cognitive impairment or mild dementia

Why it may help: In a 4-week randomised trial of 52 older adults with mild cognitive impairment or mild dementia who learned to use a reminder app or a voice-recorder app, they reported better everyday prospective memory afterwards. Both groups used a smartphone strategy, and there was no group without a strategy for comparison.

How to apply it: If you or a relative has memory problems, ask a doctor, occupational therapist or memory service to help set up a phone calendar, reminders or voice notes, with training and a person who can support it.

Who it may suit: People with diagnosed mild cognitive impairment or mild dementia, with a care partner.

Precautions: Small trial, short follow-up, and results rely partly on self-report. This is support for people with memory problems, not a treatment for the cause.

10

Mild cognitive impairment and dementia →

Digital calendars and assistive technology for cognitive impairment

Low certainty

Addresses: More independence in daily tasks

Why it may help: A systematic review of 12 studies of information and communication technology (smartphones, PDAs with calendars and reminder alarms) found it can improve prospective memory, especially after acquired brain injury, and recommended tailoring the product and training the user. A pilot trial of 15 people with a digital calendar with phone reminders found differences in occupational performance and independence measures.

How to apply it: Ask an occupational therapist for an assessment. Choose one simple system rather than many apps.

Who it may suit: People with memory problems after brain injury or other cognitive impairment.

Precautions: The pilot trial was tiny and the review included weaker designs. Training and individual tailoring matter more than the specific gadget.

11,12

Structured prospective memory training programmes

Mixed findings

Addresses: Short-term gains in older adults

Why it may help: A meta-analysis of 29 randomised trials found moderate immediate efficacy of prospective memory training in older adults (g = 0.54) but no significant long-term effect (g = 0.20). The authors note the quality of studies varied and better trials are needed.

How to apply it: Ask a memory service or occupational therapist about courses. Make the skills routine so they keep going after the course ends.

Who it may suit: Older adults, healthy or with cognitive decline.

Precautions: Gains faded, and trial quality was uneven. Commercial brain-training apps are a different question; see do brain-training games work.

6

Do brain-training games work? →

Food & nutrition

Eating and drinking for remembering

We did not find trials showing that any food or drink improves remembering tasks and appointments, so none is recommended for this goal. Regular meals and plenty of fluid support concentration and sleep generally, but that is general advice, not a finding from the studies we read.

The omega-3 meta-analysis we read looked at supplements rather than foods, and measured executive function rather than remembering tasks. For eating patterns for long-term brain health, see our brain-healthy habits page.

  • Keep a regular meal pattern so hunger does not distract you from tasks.
  • Keep a glass of water on your desk or table as one of your daily cues.
  • Limit caffeine late in the day so sleep stays protected.
  • Ask a doctor about blood tests if tiredness or forgetfulness is persistent.
13

Remedies & supplements

Traditional use, laboratory findings and human trials are kept apart. "Natural" does not mean safe.

Ginkgo biloba extract

Evidence against

Studied form and route: Standardised leaf extract in tablets or capsules

Intended outcome: No benefit shown for preventing dementia; unproven for remembering tasks

Human evidence: The GEM trial gave 120 mg of extract twice a day or placebo to 3,069 volunteers aged 75 or older for a median of 6.1 years and found no reduction in dementia or Alzheimer's disease (hazard ratio 1.12 and 1.16, neither significant). A Cochrane review of 36 trials judged the evidence for predictable, clinically significant benefit inconsistent and unreliable, and found no excess side effects compared with placebo. Neither study tested remembering tasks.

Traditional use: Leaf extracts have long been used in China as a traditional medicine for many conditions, including memory and concentration problems.

Laboratory findings: We read no laboratory work for this page.

Limits: The trial was in older adults, and the Cochrane review included many small or poorly designed trials. Neither was designed to test prospective memory.

Interactions and precautions: Ginkgo can interact with some medicines, including blood thinners, so see our bleeding-cautions page. Ask a pharmacist or doctor before use, especially if you take blood thinners, have surgery planned, are pregnant or breastfeeding, or have a long-term condition.

14,15

Ginkgo biloba for memory: large trials and bleeding cautions → Ginkgo →

Bacopa monnieri extract

Low certainty

Studied form and route: Standardised extract in capsules, taken for 12 weeks or more in trials

Intended outcome: Possible faster attention; unproven for remembering tasks

Human evidence: A meta-analysis of nine randomised trials (518 people, 437 in the pooled analysis) found improved Trail B time (-17.9 ms) and shorter choice reaction time. The authors concluded it may improve cognition, particularly speed of attention, and called for a large head-to-head trial before firm conclusions.

Traditional use: Bacopa has a long history in Ayurvedic medicine for neurological and behavioural problems.

Laboratory findings: We read no laboratory work for this page.

Limits: Outcomes were laboratory tests of attention and reaction speed, not remembering tasks or appointments. Studies were small, and extracts vary.

Interactions and precautions: Safety with medicines, in pregnancy and breastfeeding was not covered in the abstract we read. Ask a pharmacist or doctor first.

16

Bacopa for memory: evidence, side effects and medicine cautions →

Omega-3 fatty acid supplements

Low certainty

Studied form and route: Fish oil or algal oil capsules

Intended outcome: Possible benefit for executive function in some middle-aged and older adults; not tested for remembering tasks

Human evidence: A meta-analysis of 24 studies (9,660 people, follow-up 3 to 36 months) in people without dementia found a possible benefit on executive function, mainly in the first 12 months, mostly where blood DHA plus EPA levels were not very low.

Traditional use: Not a traditional remedy as such; fish and fish oils are traditional foods.

Laboratory findings: We read no laboratory work for this page.

Limits: Executive function is a related but different skill. The authors describe the benefit as potential. We did not read a trial of omega-3 on prospective memory.

Interactions and precautions: Ask a doctor or pharmacist before use if you take blood thinners, are pregnant or breastfeeding, or have a long-term condition.

13

Omega fatty acids explained →

Caffeine

Not enough evidence

Studied form and route: Coffee, tea or caffeine tablets

Intended outcome: Little evidence beyond quicker reaction times

Human evidence: A review of caffeine and memory in healthy people found limited evidence that caffeine affects memory beyond improved reaction times, with inconsistent dose-response findings, and noted a need for more evidence on prospective memory.

Traditional use: Coffee and tea are traditional drinks; we did not read a source for traditional memory claims.

Laboratory findings: We read no laboratory work for this page.

Limits: Studies often lacked controls for diet and sleep. We found no trial on remembering tasks.

Interactions and precautions: Caffeine can disturb sleep, raise anxiety and palpitations, and should be limited in pregnancy. Poor sleep makes prospective memory worse.

17

Caffeine and energy drinks →

Therapies & care

Established professional care starts with a conversation with your doctor, who can look at sleep, mood, medicines, hearing and eyesight, and decide whether a memory assessment is needed. Occupational therapists and memory services help people build reminder systems. We describe the care in general terms only. Never stop a prescribed medicine without talking to the person who prescribed it.

Assessment by a doctor

Not enough evidence

Professional care A doctor can ask about when the forgetting started, sleep, mood, medicines and alcohol, and decide whether tests or a memory service referral are needed. Bring someone who knows you well, and a note of examples.

Who it may suit: Anyone whose forgetting is new, worsening or causing problems at home, at work or with safety.

Precautions: Seek urgent care for sudden confusion, speech trouble or weakness on one side.

When memory changes need a check-up → Mild cognitive impairment and dementia →

Occupational therapy and assistive technology

Low certainty

Professional care A systematic review of 12 studies found phone calendars and reminder alarms can improve prospective memory, especially after brain injury, and recommended that tools be tailored to the person and the person be trained. A pilot trial of a digital calendar with phone reminders in 15 people suggested better performance and independence.

Who it may suit: People with memory problems from brain injury, mild cognitive impairment or other conditions, and their carers.

Precautions: Small studies and uneven quality; ask what evidence supports a particular product.

11,12,10

Prospective memory training

Mixed findings

Skills training A meta-analysis of 29 randomised trials found moderate short-term gains in older adults and no significant long-term benefit.

Who it may suit: Older adults, with or without cognitive decline.

Precautions: Practise the skills in daily life so they last; be cautious of expensive programmes that promise more than this evidence.

6

Assessment for adult ADHD

Not enough evidence

Professional care Difficulties with prospective memory are reported in several clinical groups, including people with ADHD. If you have had lifelong trouble with attention, organisation and time, a clinician can assess you and discuss support in general terms.

Who it may suit: Adults with long-standing attention and organisation difficulties.

Precautions: Self-diagnosis from online lists is unreliable. See a clinician.

4

ADHD in adults →

Sleep care

Not enough evidence

Professional care If poor sleep is part of the problem, a doctor can look for insomnia or sleep apnoea and discuss non-drug approaches. Our sleep pages cover this in general terms.

Who it may suit: People with long-standing sleep problems, loud snoring or daytime sleepiness.

Precautions: Do not stop a prescribed sleep medicine without medical advice.

2

Insomnia → Sleep apnoea →

What to avoid

Habits, products and claims that can get in the way. Never stop a prescribed medicine without talking to the professional who prescribed it.

Risks that apply to most people

Trusting memory alone for important or time-based tasks

Low certainty

Why: In a laboratory meta-analysis, tasks that needed deliberate strategic effort showed larger age gaps than tasks supported by a clear cue, so a cue helps. Appointments and medicines have little room for error.

Who it applies to: Anyone with important deadlines or health appointments.

Try instead: Put the task in a calendar with an alert and add an if-then cue.

1,8

Vague intentions such as "I'll call them sometime"

Moderate certainty

Why: Plans that link a specific situation to a specific action improved prospective memory in a meta-analysis of 36 comparisons.

Who it applies to: Everyone.

Try instead: Name the cue and the action: "After breakfast I will phone the clinic."

5

Personal triggers to check

Short or broken sleep

Moderate certainty

Why: A meta-analysis of 24 samples found sleep benefited prospective memory (d = 0.41).

Who it applies to: Shift workers, new parents, people with insomnia or sleep apnoea.

Try instead: Protect a regular sleep window and get snoring or insomnia checked.

2

Insomnia → Sleep apnoea →

Recreational drug use

Low certainty

Why: A study of 100 adults found users performed worse on a laboratory prospective memory test, including after adjusting for sleep quality, general health and alcohol use. It cannot show cause and effect.

Who it applies to: People who use recreational drugs.

Try instead: If you notice more lapses, talk to a doctor or pharmacist in confidence.

3

Medicines that affect memory or alertness

Not enough evidence

Why: Some medicines can cause drowsiness or memory problems. We did not read trials on this page, so the point is to check, not to stop anything.

Who it applies to: Anyone taking several medicines, especially older adults.

Try instead: Ask your pharmacist or doctor to review your medicines. Never stop a prescribed medicine yourself.

Medicines, sleep, mood and memory →

Products that need caution

Memory pills sold as a fix for forgetting

Evidence against

Why: A randomised trial of 3,069 people aged 75 or older found ginkgo did not reduce dementia (hazard ratio 1.12, 95% CI 0.94 to 1.33), and a Cochrane review judged the evidence for benefit inconsistent and unreliable. None of the supplement studies we read tested remembering tasks.

Who it applies to: Anyone tempted by memory supplements.

Try instead: Spend the money on a good diary, a phone you trust and enough sleep.

14,15

Nootropics and memory supplements →

Brain-training games sold as a cure for forgetting

Not enough evidence

Why: We did not read trials on commercial brain-training games for this page. Training that practises your actual tasks, such as prospective memory courses, is a different thing and had short-term gains only.

Who it applies to: Anyone considering memory apps.

Try instead: Practise the real habits: cues, if-then plans and reminders.

6

Do brain-training games work? →

Unsupported claims

"Ginkgo or bacopa will make you remember things"

Low certainty

Why: Ginkgo failed to reduce dementia in a large trial. A meta-analysis of nine trials of bacopa (437 eligible people) found faster Trail B and choice reaction times, which measure speed of attention, not remembering tasks, and called for a definitive trial.

Who it applies to: Supplement marketing.

Try instead: Treat them as unproven for this goal and ask a pharmacist first.

14,16

"Forgetting an appointment means dementia"

Mixed findings

Why: Prospective memory lapses are common, and a meta-analysis found older adults often did better than younger adults on real-life tasks at home. Persistent, worsening or disabling change is what needs a check.

Who it applies to: Worried people of any age.

Try instead: Note how often it happens and whether it is new or worsening, then talk to a doctor if worried.

1,7

When memory changes need a check-up →

Common mistakes

Using several different calendars and lists

Not enough evidence

Why: We did not find a trial of this. The evidence on lists and reminders supports one trusted place; scattered notes make it easier to miss a cue.

Who it applies to: People using phones, paper, notes and sticky notes at once.

Try instead: Choose one calendar and one list, and move everything into them.

Setting a reminder with no action attached

Low certainty

Why: Plans that link a cue to a specific action worked better than general intentions.

Who it applies to: Anyone who snoozes alerts.

Try instead: Write what to do and what to bring in the alert, and act on it at once or reschedule it.

5

Evidence & safety

What the research shows

The best-supported tools are the plain ones. If-then plans gave medium improvements in prospective memory in a meta-analysis of 36 comparisons, text reminders raised attendance at healthcare appointments in a Cochrane review, and sleep showed a small-to-medium benefit. Smartphone reminders, calendars and prospective memory training show promise for people with memory problems, with short-term gains and small or uneven studies. Ginkgo did not help in a large trial, and bacopa, omega-3 and caffeine are unproven for remembering tasks.

Limits of the evidence

  • Much of the if-then plan research uses laboratory tasks, so effects in busy daily life may be smaller.
  • The Cochrane review of text reminders rated the evidence low to moderate, with varied studies and little reporting on harms.
  • Smartphone and calendar trials in cognitive impairment were small and short, and one had no no-strategy comparison group.
  • Prospective memory training gains faded at follow-up.
  • The supplement studies measured dementia incidence, attention speed or executive function, not remembering tasks.
  • We read abstracts, so our summaries do not cover every detail of each paper.
  • We did not find trials of weekly reviews, key-bowl routines or alert timing.

Precautions and interactions

  • Supplements can interact with medicines. Ask a pharmacist before use, especially with blood thinners, planned surgery, pregnancy, breastfeeding or long-term conditions.
  • Never stop a prescribed medicine on your own.
  • Use more than one cue and a helper for anything where a missed task could cause harm.
  • Do not use self-help tools to put off a medical check for worsening memory.

Life-stage considerations

  • Older adults: reminders and lists work well, and a meta-analysis found good performance on realistic tasks at home. New or worsening change should be checked, and medicines should be reviewed.
  • Pregnancy and breastfeeding: forgetfulness and poor sleep are common, and reminders and lists help. Check with your midwife or doctor before any supplement.
  • Children and teenagers: we did not read studies for this age group, so this page focuses on adults; families can use shared calendars and routines.
  • Shift workers: sleep loss may lower prospective memory; use extra cues and protect sleep.

Warning signs

  • Sudden confusion, trouble speaking, weakness on one side, severe headache or fainting.
  • Memory problems that are steadily worsening, or getting lost in familiar places.
  • Missing medicines, bills or important duties repeatedly.
  • Low mood, hopelessness or constant worry that is affecting memory and daily life.

Claim checks

Making an if-then plan helps you remember.

Supported

5

Text message reminders reduce missed appointments.

Supported

8

Ginkgo protects memory.

Not supported

14,15

Bacopa improves memory.

Unproven

16

Older people are always worse at remembering tasks.

Not supported

1,7

Better sleep helps you remember to do things.

Supported

2

Questions people ask

What is prospective memory?

It is remembering to do something at a later time, such as an appointment, a phone call or taking something with you. It is different from remembering what happened in the past.

What is the single most useful trick?

A specific if-then plan linked to a clear cue. A meta-analysis found these plans gave a medium improvement in prospective memory, though most studies were in the laboratory.

Do text reminders really work for appointments?

A Cochrane review found moderate-quality evidence that text reminders raised attendance compared with no reminders, and worked about as well as phone calls. The evidence was mixed in quality.

Should I use a paper diary or my phone?

We did not find a trial comparing them. A meta-analysis found people did well with to-do lists and diary tasks at home. The best system is the one you check every day and keep in one place.

Does poor sleep make me forget to do things?

Evidence suggests it can. A meta-analysis of 24 samples found sleep benefited prospective memory with a small-to-medium effect.

Does memory get worse with age for remembering tasks?

It depends on the task. A meta-analysis found younger adults did better in laboratory tests, but older adults did better in realistic tasks done at home, particularly to-do lists and diary tasks.

Does ginkgo help me remember appointments?

No evidence supports that. A trial of 3,069 older volunteers found no reduction in dementia, and a Cochrane review judged the evidence for benefit inconsistent and unreliable.

What about bacopa or omega-3?

Bacopa showed faster attention and reaction times in a meta-analysis, and omega-3 showed a possible executive function benefit in some adults, but neither was tested on remembering tasks. Ask a pharmacist before use.

Can smartphone apps help people with memory problems?

A small randomised trial of 52 people with mild cognitive impairment or mild dementia found they reported better daily prospective memory after learning reminder or voice-recorder apps. Larger trials are needed, and support from a care partner or therapist helps.

When is forgetting a reason to see a doctor?

See a doctor if it is new, getting worse, causing problems with safety, medicines or bills, or others have noticed. Sudden confusion, speech trouble or weakness on one side needs urgent care.

Could this be ADHD?

Lifelong trouble with attention, time and organisation can be assessed by a clinician. Prospective memory difficulties are reported in several conditions, including ADHD, so do not self-diagnose.

References

  1. Henry JD, MacLeod MS, Phillips LH, Crawford JR. A meta-analytic review of prospective memory and aging. Psychol Aging. 2004. PMID 15065929. source
  2. Leong RLF, Cheng GH, Chee MWL, Lo JC. The effects of sleep on prospective memory: A systematic review and meta-analysis. Sleep Med Rev. 2019. PMID 31216498. source
  3. Levent A, Davelaar EJ. Recreational drug use and prospective memory. Psychopharmacology (Berl). 2022. PMID 35129670. source
  4. Raskin SA, et al. Prospective memory in clinical populations. Clin Neuropsychol. 2018. PMID 29936902. source
  5. Chen XJ, et al. The effect of implementation intention on prospective memory: a systematic and meta-analytic review. Psychiatry Res. 2015. PMID 25639373. source
  6. Tse ZCK, et al. Prospective Memory Training in Older Adults: A Systematic Review and Meta-Analysis. Neuropsychol Rev. 2023. PMID 35543836. source
  7. Menéndez-Granda M, et al. Factors Explaining Age-Related Prospective Memory Performance Differences: A Meta-analysis. J Gerontol B Psychol Sci Soc Sci. 2025. PMID 39932311. source
  8. Gurol-Urganci I, de Jongh T, Vodopivec-Jamsek V, Atun R, Car J. Mobile phone messaging reminders for attendance at healthcare appointments. Cochrane Database Syst Rev. 2013. PMID 24310741. source
  9. Gilbert SJ, et al. Optimal use of reminders: Metacognition, effort, and cognitive offloading. J Exp Psychol Gen. 2020. PMID 31448938. source
  10. Scullin MK, et al. Using smartphone technology to improve prospective memory functioning: A randomized controlled trial. J Am Geriatr Soc. 2022. PMID 34786698. source
  11. Brandt Å, et al. Information and communication technology-based assistive technology to compensate for impaired cognition in everyday life: a systematic review. Disabil Rehabil Assist Technol. 2020. PMID 32407217. source
  12. Andreassen M, et al. An interactive digital calendar with mobile phone reminders (RemindMe) for people with cognitive impairment: A pilot randomized controlled trial. Scand J Occup Ther. 2022. PMID 33909985. source
  13. Suh SW, et al. The influence of n-3 polyunsaturated fatty acids on cognitive function in individuals without dementia: a systematic review and dose-response meta-analysis. BMC Med. 2024. PMID 38468309. source
  14. DeKosky ST, et al. Ginkgo biloba for prevention of dementia: a randomized controlled trial. JAMA. 2008. PMID 19017911. source
  15. Birks J, Grimley Evans J. Ginkgo biloba for cognitive impairment and dementia. Cochrane Database Syst Rev. 2009. PMID 19160216. source
  16. Kongkeaw C, et al. Meta-analysis of randomized controlled trials on cognitive effects of Bacopa monnieri extract. J Ethnopharmacol. 2014. PMID 24252493. source
  17. Zhang RC, Madan CR. How does caffeine influence memory? Drug, experimental, and demographic factors. Neurosci Biobehav Rev. 2021. PMID 34563564. source

Related on AlternativeMed

Related goals

Improve Everyday Memory → Improve Your Concentration → Manage Distractions → Stay Focused for Longer → Think More Clearly → Understand & Manage Brain Fog → Learn & Retain New Information → Build Better Study Habits → Maintain Brain Health as You Age → Build a Healthy Sleep Schedule → Feel Less Overwhelmed →

Ingredients, foods and supplements

Ginkgo → Omega fatty acids explained →

Research, safety and claim-check resources

Do brain-training games work? → Nootropics and memory supplements → Focus & Memory → Ginkgo biloba for memory: large trials and bleeding cautions → Bacopa for memory: evidence, side effects and medicine cautions →