Hit Points are used to measure the health of your character. If you're attacked or you fall from a great height, you'll lose hit points, when you run out of hit points your character will die and you'll have to restart at your last save point. If your not paying attention to your Hit Points on the screen, you'll know your close to death when you hear your heart beat getting louder. You can restore hit points by using Medical supplies such as Stimpaks or Buffout. Any food found in the Capital Wasteland we also slightly increase your Hit points. Your points will increase every time your character advances to a new level. They also increase depending on your Endurance, each Endurance level will increase your Hit Points by +10.