You know that exercise is good for your heart, but there is new evidence that hitting the gym or just staying active in general can improve a person's memory as well.
The study at Columbia University Medical Center found that those who were physically active consistently did better on memory tests than people who did not exercise.
"We've known for a long time you get this burst of energy and feel-good chemicals when you exercise, so its not that much of a stretch that it is actually going to preserve your mental function as you get older." said Elisa Zied, with the American Dietetic Association.
Researchers at Columbia were the first to track brain cells within a living brain in an attempt to identify the part most affected by exercise. They also found that exercise targets the region of the brain associated with the age related memory decline that typically begins around age 30.
The study is published in this week's National Academy of Sciences.