Can Exercise Help You Lose Weight?
Physical exercise consumes energy — in fact, it activates fat metabolism and makes white fat turn into brown fat, which burns energy. So why can't we prove that exercise helps you lose weight? Well, it's complicated…
Caroline Apovian, MD
Fat tissue metabolically plays different roles during different stress situations on the body. During exercise, fat tissue also has to maintain body temperature and overall systemic energy balance. This is true for both acute and chronic exercise states.Recent studies suggest that increased fat metabolism and the browning of white fat and also a reduction in brown fat thermogenesis may both be triggered by exercise — at different time intervals.
This explains the conflicting...