Life

While I was out in the world killing some stuff I found a belt. This belt had about 20 more life then my previous one and I continued to swap the two several times with the character panel open to compare the changes of equipping this belt. I wasn't really looking at my life but when I did I noticed I was at about 25%. Turns out each time I swapped the belts I would lose some life. I quickly chugged a flask and didn't try again until I was in a more controlled environment but I couldn't recreate this. Sorry that I didn't screenshot or anything. If it helps I was in the dark forest on normal difficulty hardcore league.

EDIT: Just recreated it with another belt in Alira's Camp. I think it only works when I'm already missing health.