Did you know that you have different kinds of fat in your body? One type of fat is called white fat and another is brown. Brown fat is considered a very good kind of fat and one way to increase it is to sleep in a cool room. Brown fat boosts our metabolism giving us increased metabolic advantages. A study tested people sleeping in rooms at 66 degrees and had more fat than white fat in their bodies.
Brown fat is considered to be active fat. White fat is exactly what it sounds like, a bucket of lard. White fat merely stores energy while brown fat burns calories so that our bodies maintain their core temperature to protect our internal organs. Brown fat is more prevalent in babies because they have to stay warm.
Sleeping at 81 degrees will undo all the benefits of having slept at 66 degrees in just four weeks because the brown fat then disappears. So working, living, and sleeping in cooler environments increases our brown fat which also improves our insulin sensitivity.
There is some suggestion that people who are overweight and showing signs of insulin resistance might benefit from spending more time in cooler environments. This could be good news.
It is good to know that not all fat is evil. White fat stores energy as big fat blobs. Brown fat creates heat to keep our bodies warm. Too much white fat in our abdominal area is a signal that we are at risk for diabetes, heart disease, and other metabolic diseases. If we could figure out a way to turn white fat into brown fat, we might have figured out a game changing way to treat diabetes and the obesity epidemic.