The human body has two kinds of fat: the “bad” white kind that stores calories and the “good” brown kind that burns them. Now, researchers say that it is actually possible to make more brown fat to help people lose weight. “We are now even more optimistic that brown fat could be used for treating obesity and diabetes,” study lead author Dr. Aaron Cypess, assistant professor at Harvard Medical School and the Joslin Diabetes Center in Boston, said in a news release from the Endocrine Society.