Fitness Linked to Brain Health
Middle-aged couch potatoes may have smaller brains decades later. In a study, 1,583 people with an average age of 40 and without brain disorders or heart disease took treadmill tests two decades apart and also underwent brain scans. The less time it took for their heart rate to reach a certain level, indicating a lack of fitness, the lower their brain volume, a signal of brain aging. Those people whose blood pressure and heart rate went up faster were also more likely to have smaller brains two decades later. Bottom line: The fitter you are over your lifetime, the more likely you’ll have a healthy brain as you age.
Source: Neurology, published online Feb. 10, 2016