Hit Points, or HP, is your effective "health". When your HP reaches 0, you become incapacitated, and when it reaches -10 or lower, you die. You gain hit points at every level as well as from some armor with enhancements such as Lesser False Life, or when you gain a higher constitution modifier. Hit points are a main stat in the game, because without high HP you can die easily. HP is displayed as a red bar in the lower left hand side of the UI .