Living Anatomy
From AoP Wiki
Living Anatomy is a possible Perk you can learn during the leveling process of your character.
Perk Description
+3% (additive) Crit Chance
See how much HP your teammates have.
Important notes
Due to Base Crit Chance also affecting Aimed Crit Chance, you get +3% Base Crit Chance, as well as +3% Aimed Crit Chance.
The perk adds bars over teammate's heads, allowing you to estimate their HP condition much easier on a glance.
You can also see your own HP above your head with the perk.