> Insulin is the primary hormone that tells your body whether to store energy or burn it. When you eat, you're taking calories in and insulin goes up. Higher levels of insulin signal your body to store energy. When insulin falls, it tells your body to release energy. When you develop insulin resistance, your insulin levels remain chronically elevated, hence your body is in constant fat-storing mode.<p>Best definition of insulin I ever read.<p>I liked his thoughts on fasting too.