(NEWSER) - Scientists have found a potential new tool to help people lose weight—an unusual form of fat found inside the body. A new batch of studies shows that adults have stores of so-called brown fat, which actually burns calories and generates heat, the New York Times reports. Scientists have long known that babies—and rodents—have brown fat, which kicks in during cold weather to keep them warm. But until now, they thought it was lost after infancy. More»