You can keep your memory sharp at any age — the brain stays capable of forming new connections throughout life. The habits that help most are the ones that are good for your whole self: staying physically active, sleeping well, keeping your mind engaged and curious, staying socially connected, and managing stress. Importantly, memory is deeply affected by your emotional state: stress, poor sleep, anxiety and depression all cloud concentration and recall — and when they do, the memory problems are usually very treatable. Occasional forgetfulness (a misplaced key, a name on the tip of your tongue) is a normal part of life and ageing. But if memory changes start to disrupt daily life, that's worth getting checked by a doctor rather than worrying alone.
A good memory isn't a fixed gift you're either born with or not. For a long time we assumed memory simply fades with age and there's nothing to be done — but that's not what the science says. The brain remains capable of growth and change throughout life, and the way you live, think and feel has a real influence on how well your memory serves you. This is genuinely good news: many of the things that protect your memory are simple, free, and good for you in every other way too.
Normal forgetfulness versus something more
First, some reassurance — because worry about memory is itself extremely common, and often unwarranted. Everyone forgets things: where they left the keys, why they walked into a room, a familiar name that won't quite surface. This kind of everyday forgetfulness is normal at any age, and tends to become a little more frequent as we get older. It is not, by itself, a sign of dementia.
It's the impact on daily life that distinguishes ordinary forgetfulness from something that needs attention. Forgetting where you parked is normal; struggling to retrace your route home from a familiar place is not. Misplacing your glasses is normal; putting them somewhere very out of place and being unable to reason where, repeatedly, is worth noting. Signs worth discussing with a doctor include memory lapses that disrupt everyday tasks, getting lost in familiar surroundings, difficulty following conversations or finding words, or changes that worry the people close to you. Raising it early is sensible, not alarmist — many causes of memory trouble are treatable, and a proper assessment brings either reassurance or the right help.
The mind–memory link: stress, sleep and mood
This is where memory is very much a psychological matter, not only a neurological one. Your emotional state has a powerful, often underestimated effect on how well you remember:
- Stress and anxiety flood the mind with worry, leaving little room for attention — and without attention, information never properly registers in the first place. Much "forgetting" is really never-quite-absorbed.
- Poor sleep directly impairs memory: sleep is when the brain consolidates the day's learning. Disturbed or insufficient sleep means weaker recall.
- Depression can significantly dull concentration and memory — so much so that in older adults it sometimes mimics dementia. The crucial difference is that this kind of memory difficulty lifts when the depression is treated.
Why this matters so much: if stress, sleeplessness, anxiety or low mood are behind your memory troubles, then the path to a sharper memory runs through caring for your mental health — and those problems respond well to support. It's a hopeful message: memory difficulty driven by emotional strain is among the most treatable kinds there is.
Everyday habits that support memory and brain health
The habits below genuinely help — and they work because what's good for your body and mood is good for your brain. Research increasingly links a healthy lifestyle across life with lower dementia risk: the Lancet Commission estimates that around 45% of dementia cases worldwide could potentially be delayed or reduced by addressing modifiable risk factors such as physical inactivity, social isolation, hearing loss, low mood and others (Lancet Commission, 2024). These habits support brain health — they're not a guarantee against any illness, but they tilt the odds in your favour.
Move your body
Physical activity boosts blood flow to the brain and supports the growth of new neural connections. It also improves sleep and lowers stress — both of which sharpen memory. Anything that gets you moving and that you'll actually keep doing counts.
Protect your sleep
Because sleep is when memories are consolidated, good rest is one of the most powerful things you can do for recall. Aim for regular, sufficient, good-quality sleep, and treat persistent sleep problems seriously.
Keep your mind engaged
The brain thrives on novelty and challenge. Learning something new — a language, an instrument, a skill — reading, puzzles, meaningful work: all keep neural pathways active. The key is genuine engagement, not idle repetition.
Stay socially connected
Connection is powerfully protective for the brain, and isolation is a recognised risk for cognitive decline. Time with people, conversation, shared activity and community all nourish memory and mood together.
Manage stress and mood
Because stress and low mood directly impair memory, tending to your emotional wellbeing is tending to your memory. Whatever genuinely helps you unwind — and seeking support when feelings become heavy — protects your mind in more ways than one.
Pay attention, and lighten the load
Much forgetting is really inattention. Reduce distractions and do one thing at a time so information registers properly. And lean on simple aids — notes, lists, calendars, a fixed place for your keys — which free your mind rather than weaken it.
If your memory concerns are tied to anxiety, stress or low mood, addressing those can lift the fog — and a consultation with Dr. Kohli can help. If you're worried about more significant or persistent memory changes, please also see a doctor for a proper assessment; it's the caring, sensible step, and most often brings reassurance.
Key takeaways
- The brain stays capable of forming new connections throughout life — memory can be supported at any age.
- Occasional forgetfulness is normal; it's memory change that disrupts daily life that's worth getting checked.
- Stress, poor sleep, anxiety and depression strongly impair memory — and those causes are very treatable.
- Movement, sleep, mental engagement, social connection and stress management support memory and brain health.
- Healthy habits may help reduce or delay dementia risk — they support brain health, but aren't a guarantee.
Frequently asked questions
Is forgetting things a sign of dementia?
Usually not. Everyone forgets things sometimes, and it tends to increase a little with age — that's normal. What's worth attention is forgetfulness that disrupts daily life: getting lost in familiar places, struggling to follow conversations, or changes that worry those around you. If you're unsure, a doctor's assessment is the sensible step and often brings reassurance.
Can stress and anxiety really affect my memory?
Yes, significantly. Stress and anxiety occupy the mind with worry, leaving little attention for taking in new information — so it never properly registers. Poor sleep and low mood have similar effects. The encouraging part is that memory problems caused by emotional strain are very treatable: as the stress, anxiety or depression eases, memory and concentration typically improve.
Can you really improve memory, or does it only decline with age?
You can genuinely support and sharpen it. The old idea that memory only declines with age is outdated — the brain remains capable of forming new connections throughout life. Healthy habits around movement, sleep, mental engagement, social connection and stress all help, at any age.
Do healthy habits prevent dementia?
They can't guarantee prevention, but they meaningfully help. Research, including the 2024 Lancet Commission, suggests a large share of dementia cases could be delayed or reduced by addressing modifiable risk factors across life — things like staying active, socially connected, and managing low mood and hearing. So healthy habits tilt the odds in your favour and support brain health, even though no habit removes risk entirely.
If worry about memory — or the stress and low mood that often cloud it — is weighing on you, support can help you think clearly again. Dr. Prerna Kohli offers warm, confidential help, in person in Gurugram and online across India and for NRIs worldwide.
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About the author
Dr. Prerna Kohli
Dr. Prerna Kohli is a clinical psychologist with over 30 years of practice, based in Gurugram. She holds a PhD from Aligarh Muslim University, where she was a four-time gold medallist, and received the "100 Women Achievers of India" award from the President of India in 2016. A TEDx speaker and published author, she works with individuals, couples, and families through her private practice — in clinic in Gurugram and online worldwide — with a particular speciality in NRI mental health.