The hormone leptin is your body's built-in appetite control monitor. It sends a signal to your brain's hypothalamus when you have taken in enough energy from food. However, people who are overweight or obese from overeating may have malfunctioning appetite control feedback. Their bad habits have short-circuited the system and their brains become resistant to the leptin signals. As a result, these people may continue to feel hungry, and to eat, well after they have had enough.

TAKE A MODERATE APPROACH VIDEOS

CHAPTER 1 Everything In Moderation Different parts of the brain spur you to make responsible decisions, or indulge in excess. VIEW VIDEO

CHAPTER 4 (currently viewing) Leptin Controls Appetite The hormone leptin tells your body when you have had enough to eat. VIEW VIDEO

CHAPTER 6 Hooked On Sugar We have a natural urge for sweetness, but we can kick the habit. VIEW VIDEO

CHAPTER 9 Apple-Shaped Vs. Pear-Shaped Everyone stores fat, but how much and where we store it makes a big difference to our health. VIEW VIDEO

CHAPTER 10 What Is Inflammation? Overweight and obese people are more likely to suffer from chronic inflammation. VIEW VIDEO

CHAPTER 12 The Complexities Of Addiction Addiction has physical, psychological and social components. VIEW VIDEO

CHAPTER 16 Obesity Is Toxic How do obese people develop insulin resistance and diabetes? VIEW VIDEO