Credit: Maya Styner, UNC
Images show the effect of exercise on fat inside bone marrow. The more green and purple, the more fat in was in the bone marrow. Far left: composite image of femur bones in sedentary mice fed a regular diet. Second from left: femur image of exercising mice fed a regular diet. Third from left: sedentary mice fed a diet high in fat. Far right: mice fed a high-fat diet but allowed to exercise. Scans provided by Maya Styner, MD