This attribute is a measure of the amount of physical damage your character can take. It is used up when your character is injured, and will recover over time. Recovery can be greatly accelerated with medical assistance, either through the use of medical skills, the payment of a doctor or nurse to heal wounds, or the use of Quick Fix or Regen pills. It is determined by the Body attribute and the Vitality skill.
Hp is calculated as follows:
Hp = (BodyStat + 5) div 2 Hp = Hp + VitalitySkill
Every ten in game minutes you regenerate 1 HP.