Several published scientific studies have shown that physical exercise promotes brain health.
Soon after physical activity, humans preform better on memory tests than those who are sedentary. People who exercise several times a week have higher cognition scores than the sedentary.
In mice, running as a form of exercise promotes the growth of new brain cells. Some of the benefits of brain health are now attributed to a molecule called irisin. This molecule, classified as a hormone, increases brain cell proliferation and neurogenesis in mice. Skeletal muscle exercise causes the release of the molecule which then travels to the brain by blood vessels where it has positive effects.
Initially discovered in mice, irisin is also found in other mammals, including humans. Mouse and human irisin are thought to be identical.
Irisin was first reported in the literature in 2012 as an exercise-induced protein. It is now thought that irisin probably has protective benefits against some chronic diseases such as Type 2 diabetes, cardiovascular disease, cancer, dementia and depression.
Exercise also increases the release of several neurotransmitters.
Serotonin promotes feelings of happiness and dopamine causes a sense of temporary pleasure. These feelings are often noticed after a period of physical exercise. The CDC recommends 150 minutes of moderate exercise or 75 minutes of vigorous exercise per week for adults. Exercise that stimulates the cardiovascular system should allow more irisin to travel to the brain. Exercise helps to decrease the risk of neurodegenerative diseases such as Alzheimer's disease and other forms of dementia.
Think about it and keep moving!
