LEPTIN: What It Is and What It Does….
Prior to leptin's discovery, fat was viewed as strictly an ugly energy storage depot that most everyone was trying to get rid of. After it was discovered that fat produced the hormone leptin (and it was subsequently revealed that fat produced other very significant hormones), the fat started to be viewed as an endocrine organ like your ovaries, pancreas, and pituitary, influencing the rest of your body and, in particular, your brain.
Leptin, as far as science currently knows, is the most powerful regulator that tells your brain what to do about your life's two main biological goals: eating and reproduction. Your fat, by way of leptin, tells your brain whether you should be hungry, eat and make more fat; whether you should reproduce and make babies; or (partly by controlling insulin) whe...