A group of 1635 seniors were randomly assigned to receive either a structured, moderate-intensity program of physical activity (walking, flexibility, resistance training) or health education workshops and upper-body stretching for two years. Researchers did not find any significant difference between the groups in either cognitive improvement or less mild cognitive impairment. This two-year study should not be understood to suggest a life-long program of good physical activity is without considerable value.
PositiveTip: Regular physical activity throughout life is important for maintaining mental and physical health.
Reference: http://jama.jamanetwork.com/article.aspx?articleid=2429712