From Asheron's Call Community Wiki
Related topics: Health Regeneration
Starting health is determined by base Endurance at creation. Health can be raised directly as well as indirectly by raising Endurance. Health regains slowly over time, faster if crouching, even faster if laying down. Augmentation Gems can double and triple the rate of regeneration when laying down. Health can be restored with Life Magic, with Healing Kits and Healing (Skill), and with various Potions and some Food. Maximum unbuffed health is 341 and the current theoretical maximum is 652.7(?).
Endurance / 2