Burning excess fat in your body is the most difficult thing to accomplish in anyoneâ€™s lifetime. Stubborn fat needs to be continuously worked on. This effort is even more difficult to do when cold weather sets in. When your body feels cold, metabolism slows down. Blood goes to the center of the body to keep it warm. Once you accumulate fats during the cold season, this needs twice the effort to remove by the time it gets warm again. People tend to eat a lot and become less physically active during the cold season. This is because as dictated by our genetics, we are supposed to eat more when it is cold because of food scarcity and because it more heat is needed by our body to survive.