Exercise will not turn you into a genius, but the evidence that it supports a healthier, sharper brain is strong enough that few doctors would argue.
What the research suggests
- Executive function. Regular aerobic exercise is linked with better planning, attention and mental flexibility, especially in older adults.
- Memory. Some studies show small increases in the size of memory-related brain regions after months of walking.
- Mood and stress. Exercise lowers anxiety and improves mood, which clears the way for good thinking.
- Brain ageing. Active people tend to show slower cognitive decline later in life.
An honest caveat
Effects are usually modest, studies differ, and active people are often healthier in other ways too. Exercise is not a replacement for learning, sleep or social connection, but it is a great partner for them.
A simple routine
- Aim for about 150 minutes of moderate activity a week: brisk walking, cycling, swimming.
- Add two short strength sessions.
- Take a ten-minute walk when you are stuck on a problem.
- Pick something you enjoy, because the best routine is the one you keep.
Mind and body together
Some people think better walking. Try planning, brainstorming or listening to something educational during your walk.
After a workout, solve today's puzzle: the Daily Challenge takes five minutes.