Last updated: 8 November 2026
Reviewed by: Elfcare quality team
Your brain shapes how you think, remember, move and feel. Looking after it is one of the most important things you can do for your long-term health, and much of what protects it lies in everyday habits.
The Swedish Brain Foundation (Hjärnfonden) argues that we should treat the brain as one of our most valuable resources, and that workplaces, schools and communities should be shaped around its needs. Sleep, physical activity, mental wellbeing and social connection all play a part.
What is brain health?
The World Health Organization describes brain health as how well your brain works across thinking, senses, emotions, behaviour and movement, so that you can reach your full potential throughout life. It is about more than the absence of disease.
Function is only part of the picture. Underneath lies structure: the volume of the brain, its white matter pathways and its blood supply. Both are shaped by age, genetics, heart health, sleep and lifestyle, and both change gradually over the years. That means brain health is something you can influence.
10 habits that help
Stay active
People who move regularly tend to keep their minds sharper. Exercise improves blood flow to the brain and also supports balance, strength, energy and mood. Research suggests that regular physical activity may lower the risk of Alzheimer's disease.
Protect your head
A head injury can affect memory, thinking, coordination, speech and mood for a long time afterwards. Wear a helmet when cycling, skiing, riding or driving a moped, motorcycle or snowmobile.
Look after your heart and blood vessels
What is good for your heart is good for your brain. High blood pressure, diabetes, high cholesterol and heart disease all raise the risk of stroke and of declining memory and thinking. If you already have one of these conditions, follow your treatment plan. If you don't, regular check-ups help you catch changes early.
Don't smoke
Smoking damages the blood vessels that supply the brain and is one of the clearest risk factors for stroke and dementia. Quitting helps at any age.
Look after your hearing
Untreated hearing loss is considered one of the largest modifiable risk factors for dementia, possibly because the brain gets less stimulation and people withdraw from conversation. Get your hearing tested if you struggle to follow what people say, and use hearing aids if you need them.
Stay social
Time with friends and family helps protect against stress and depression, which can both affect memory. Loneliness and isolation have been linked to faster decline in thinking skills and a higher risk of Alzheimer's disease.
Prioritise sleep
During sleep, the brain recovers and processes what you have experienced and learned. Good sleep keeps you alert and focused and helps you manage stress. Most adults need between 6 and 9 hours a night, and needs vary from person to person.
Heavy snoring or pauses in breathing can be a sign of sleep apnoea, which disrupts sleep and is linked to a higher risk of cognitive decline. Talk to a doctor if you or your partner notice this.
Eat for your brain
A diet rich in vegetables, berries, nuts, whole grains, fish and olive oil is linked to better brain health. One example is the MIND diet, which combines elements of the Mediterranean and DASH diets and limits red meat, butter, cheese and sweets. The evidence is still developing, but these foods also benefit your heart and blood vessels.
Keep learning
Mental challenges help keep the brain active. Read, solve puzzles, play games, learn a language or an instrument, or take up a new hobby. Volunteering combines mental stimulation with social contact.
Drink less alcohol
Alcohol affects memory, concentration and judgement, and heavy drinking over time increases the risk of brain damage and dementia. Recent research suggests that no level of drinking is risk-free for the brain, so the less you drink, the better.
The habits work best together
The tips above are most effective when combined. The FINGER study, led by researchers at Karolinska Institutet, was the first large randomised trial to show that a combined programme of diet, exercise, cognitive training, social activity and monitoring of heart and metabolic health can improve cognitive function in older adults at increased risk. A large American study, U.S. POINTER, confirmed the findings in 2025, and showed the greatest benefit among participants who had more structure and support.
Brain health is built over a lifetime. Moving more, sleeping well, eating well, staying social, keeping your mind engaged and limiting alcohol and tobacco all support a healthier brain as you age. You don't need to change everything at once: small, consistent steps make a real difference.
See how your brain is doing
Your brain changes long before you notice it. Structural changes linked to conditions such as dementia, multiple sclerosis and cerebrovascular disease can appear years before any symptoms, which is why it pays to look proactively.
Elfcare's brain health analysis gives you an objective picture of your brain today. Using AI-powered cNeuro® cMRI analysis of an MRI scan, it measures the volume and structure of your brain, detects changes in the white matter and compares your results with thousands of people of your age and sex. You also get an estimate of your brain age. The brain health analysis will be available soon.
Last updated: 8 November 2026
Reviewed by: Elfcare quality team
