So what really makes those "hot spicy hunter" still consuming chili? Chili contained several chemical agent, collectively called capsaicinoids. When you consuming spicy food, capsaicinoid will bind with pain receptor in your mouth, tongue, and throat. This reaction will triggers burning sensation in your mouth cavity, increasing your heart rate and perspiration, and obviously releasing endorphins to your brain. Endorphins produce excitement feeling, sense of well being, light analgesia (pain relieve). This excitement feeling will recorded in your deep memory, and causing the "chili addiction" to "hot spicy hunter" group.