Just 20 Minutes Of Walking Can Help Your Brain
- pradeep
- 11 hours ago
- 2 min read
You don’t need an intense workout to start doing something good for your brain.
Heart surgeon Dr Jeremy London says even a simple 20-minute walk can offer meaningful short-term and long-term benefits for mental and brain health.
London, a board-certified cardiovascular surgeon, described exercise as one of the most powerful tools available for protecting brain health and said people often underestimate how much basic movement can help.
What Happens After A 20-Minute Walk?
According to London, a short walk can help reduce circulating cortisol within one to two hours.
He also says walking can help move the body away from a “fight or flight” state, interrupt repetitive negative thinking and help clear the mind when someone feels mentally stuck.
Morning And Midday Walks May Help Mood
London also highlighted the added benefit of getting sunlight during morning or midday walks.
Exposure to daylight during these periods can help regulate the body’s circadian rhythm, which plays an important role in sleep and mood.
What About Long-Term Benefits?
London cited research suggesting that regular brisk walking may be associated with a lower risk of depression and anxiety.
He said a daily 20-minute walk is linked with a 25 percent lower risk of developing depression, while even a 10-minute walk may be associated with an 18 percent reduction.
He also cited an approximately 29 percent lower risk of developing an anxiety disorder among people who regularly walk.
How Exercise Helps The Brain
London explained that exercise increases brain-derived neurotrophic factor, or BDNF.
He compared BDNF to “fertiliser” for the brain because it supports communication and growth between brain cells.
He also said exercise can increase IGF-1, another factor associated with neuronal growth, while supporting long-term brain health.
You Don’t Need To Become An Athlete
One of London’s biggest messages is that beginners do not need to suddenly start doing intense workouts.
He said moving from doing nothing to doing something is where some of the biggest gains can happen.
For someone having a difficult mental-health day, that might simply mean going outside and moving for 20 minutes rather than forcing themselves through a long or exhausting workout.
Exercise Is Not A Replacement For Professional Help
London also stressed an important point: movement can support mental health, but it should not be treated as a replacement for professional care when someone needs it.
Hindustan Times similarly notes that the information is for educational purposes and that the claims came from social-media content that the publication did not independently verify.
WHY THIS MATTERS
Fitness advice can often make healthy living feel complicated, expensive or exhausting.
The appeal of a 20-minute walk is its simplicity.
You do not need a gym, complicated equipment or an extreme routine to start moving more.
For people spending hours sitting at work, studying or scrolling, even a short daily walk can be an accessible first step toward supporting both physical and mental well-being.
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