Researchers and scientists have long known that fat cells are not simply inert but actually manufacture and release hormones that may contribute to increased risks of developing cancer, cardiovascular disease and other serious conditions.
Researchers have now discovered and cataloged an additional 20 different hormones and proteins that act as signaling agents which communicate with and affect different parts of the body, possibly influencing our metabolism and endocrine processes.
Source: New Evidence That Fat Cells Are Not Just Dormant Storage Depots for Calories