Scientists called the weekly norm of sports for brain health Psychiatrists from the University of Ottawa said: physical activity should be "prescribed" like a drug - with a precise dose and schedule to monitor. When muscles contract, they release myokines that affect metabolism, inflammation and nerve cell development. Exercise therapy has been shown to improve memory in the elderly; Walking, running, yoga and strength training reduce depression and anxiety at any age with just 75 minutes of moderate exercise per week. The main thing is to overcome laziness?