Adrenaline

Adrenaline is a passive item added in Afterbirth †.

Effects

 * Increases damage by 0.2 for each empty red heart container Isaac has.
 * Half-full heart containers do not increase damage.

Trivia

 * Prior to v1.06.0190, Adrenaline was named Adderline.
 * Adrenaline is a hormone produced by the body produced in situations of high stress that increases blood circulation, breathing, and other things in preparation of the natural flight or fight reflex.
 * Adrenaline causes characters to have an animation that makes them look like they are breathing rapidly.