When people talk about keeping their brains healthy, it's easy to imagine complicated puzzles, endless crosswords or trying to learn a new language from scratch.
But what if looking after your brain could be much simpler?
What if it could involve trying a new recipe, playing a board game with friends or finally giving that hobby you've always been curious about a go?
According to Alzheimer's Research UK, regularly challenging your brain and continuing to learn new things may be an important part of maintaining brain health.
And the good news is that it doesn't have to feel like homework.
What Is Cognitive Reserve?
Researchers often use the term cognitive reserve when discussing brain health.
Put simply, cognitive reserve describes the brain's ability to continue functioning despite changes caused by ageing or disease.
You can think of it as the brain's capacity to adapt and keep working even when faced with challenges.
Research suggests that people with higher cognitive reserve may experience symptoms of Alzheimer's disease later than people with lower reserve.
That doesn't mean cognitive reserve can prevent dementia.
But it does suggest that keeping our brains engaged throughout life could be beneficial.
You Don't Need to Become a Chess Champion
One of the most encouraging things about mentally stimulating activities is how ordinary they can be.
You don't need to spend hours completing difficult puzzles.
You could try:
Listening to a podcast about a subject you know nothing about
Completing a crossword or quiz
Learning to recognise a few constellations
Experimenting with photography
Trying to navigate a familiar journey without automatically relying on your phone
Playing a board game with family or friends
The important part is giving your brain something to think about rather than always relying on familiar routines.
Your Favourite Hobbies Count Too
Mental stimulation isn't limited to activities we traditionally think of as brain exercises.
Cooking a new recipe involves following instructions, planning and problem-solving.
Knitting or learning a craft can involve concentration, coordination and creativity.
DIY projects require you to work through challenges and make decisions.
Even painting or experimenting with photography can encourage you to think in new ways.
And because these activities are enjoyable, you may be more likely to continue doing them.
That's an important distinction.
Looking after your brain shouldn't have to become another chore on your to-do list.
Add a Social Element
Some activities can provide more than one potential benefit.
Take learning a language, for example.
Practising new words challenges your brain, but joining a local language group also gives you an opportunity to meet people and build social connections.
Board games can offer something similar.
You're using memory, planning and strategic thinking while spending time with other people.
And social connection is another important aspect of maintaining wellbeing as we get older.
Sometimes the most valuable activities are the ones that bring together learning, enjoyment and companionship.
Is It Ever Too Late to Start?
You don't have to have spent your entire life doing mentally challenging activities to begin exploring something new.
And you certainly don't have to be particularly good at it.
Perhaps you've always wanted to learn how to paint.
Maybe you've never tried gardening.
Or perhaps you've been curious about a particular subject but never found the time to explore it.
Starting something unfamiliar can give you a reason to concentrate, practise and develop new skills.
The goal isn't perfection.
It's engagement.
Try One New Thing This Week
There's no single activity that can guarantee protection against dementia, and mental stimulation is only one part of looking after brain health.
But the underlying idea is encouraging.
You don't necessarily need to overhaul your lifestyle.
You can start by making something you already enjoy slightly more challenging.
Try cooking a meal you've never made before.
Take a different walking route.
Learn something new about a subject that interests you.
Or invite someone over for a board game.
The best brain activity might simply be the one you enjoy enough to keep doing.
Because keeping your brain engaged isn't about making life more complicated.
Sometimes it's about making life a little more interesting.