When people think about staying healthy, they usually focus on diet or medicines. However, doctors say a simple daily habit can have a big impact on brain health. Regular movement, especially walking, can help protect both the heart and the brain.
According to Dr Jeremy London, a US board-certified cardiovascular surgeon with more than 25 years of experience, exercise is one of the easiest ways to improve long-term health. In a recent Instagram post, he explained that regular physical activity improves blood circulation, strengthens the heart, and may even lower the risk of dementia.
The doctor also pointed out that many people think cardio workouts only help the heart. But the benefits go much further. In reality, daily exercise also plays an important role in maintaining strong brain health and slowing down age-related mental decline.
Brain Health: Why 10,000 Steps A Day Can Make A Difference
Dr London says regular movement is more important than many people realise. Research shows that walking every day can significantly improve brain health.
He explained that exercise may be one of the most powerful tools to protect the brain. While cardio workouts are often linked with heart fitness, they can be just as important for keeping the brain healthy.
Studies suggest that the biggest health benefits appear when people walk around 10,000 steps a day. However, you do not need to reach that number immediately. The doctor says the benefits actually begin at around 4,000 steps a day.
This means even moderate activity can make a real difference. You do not have to run long distances or spend hours in the gym. Simple daily movement, like walking more during the day, can help improve brain health and overall fitness.
Dr London also said that exercise intensity matters. Even a small amount of high-intensity exercise every week can have strong health benefits. For example, just 30 minutes of intense training once a week may help reduce the risk of death from various causes and lower dementia risk by about 30 percent.
How Exercise Supports Brain Health
Exercise helps the body in many ways at the same time. This is one reason doctors believe it plays a major role in protecting brain health.
According to Dr London, physical activity supports the brain by:
- Improving blood flow to the brain so brain cells get enough oxygen and nutrients
- Strengthening blood vessels that support both heart and brain function
- Reducing inflammation in the body
- Increasing levels of brain-derived neurotrophic factor (BDNF), a protein that supports brain cells
BDNF is important because it helps brain cells stay healthy and encourages the growth of new neurons. This process supports memory, learning ability, and mental sharpness as people age.
Dr London says regular exercise can actually help keep the brain younger for longer.
The Simple Habit That Protects Your Heart And Brain
The main message from the doctor is simple. Moving your body every day can provide long-term health benefits. Protecting brain health does not always require complicated routines or expensive treatments.
He explains that what is good for the heart is usually good for the brain as well. The easiest way to protect both is to stay physically active every day.
In simple terms, something as basic as walking more during the day can help keep your heart strong, your brain active, and your body healthier in the long run.
