How to keep your brain healthy and efficient until old age. The World Health Organization suggests doing between 150 and 300 minutes of moderate-intensity physical activity during the week.
In physically active people, an increase in the volume of the hippocampus, the brain structure responsible for learning and memory, has been found. Swimming, running, or cycling appear to stimulate nerve cell production better (and counteract brain aging) than anaerobic activities like weight lifting. The good news is that brain improvement also extends into adulthood. Exercise not only slows cognitive decline but, in some cases, reverses it.