Research shows that using your muscles also helps your mind. Animals who exercise regularly increase the number of tiny blood vessels that bring oxygen-rich blood to the region of the brain that is responsible for thought.
Exercise also spurs the development of new nerve cells and increases the connections between brain cells (synapses). This results in brains that are more efficient, plastic, and adaptive, which translates into better performance in aging animals.
Exercise also lowers blood pressure, improves cholesterol levels, helps blood sugar balance and reduces mental stress, all of which can help your brain as well as your heart.
Good nutrition can help your mind as well as your body. For example, people that eat a Mediterranean style diet that emphasizes fruits, vegetables, fish, nuts, unsaturated oils (olive oil) and plant sources of proteins are less likely to develop cognitive impairment and dementia.
social ties have been associated with a lower risk of dementia, as well as lower blood pressure and longer life expectancy.