Brown fat is rich with mitochondria, located between the scapulae and in the upper neck, and generates thermogenesis and heat by increasing metabolism and burning fat.

“Brown fat is called Brown fat because it's actually dark under the microscope. It's rich with mitochondria and it exists mostly between the scapulae and in the upper neck. And it generates thermogenesis and heat in the body. It's rich with a certain category of agile anergic receptor, in insanely epinephrin binds to adrenergic receptors. These Brown fat cells increase metabolism, it's called Brown fat thermogenesis and cause fat burning, burning of other kinds of fat, the pink and white fat.”