Berserker Frenzy
 

Something happened between last night and this morning.

It's supposed to be that when you are below 40%, you are in a frenzy, and you can be healed up to 45%.

Now, I am regularly hovering around 32% before I get frenzied.

While we are on the topic, in live, you got a strength bonus too... I will search for references to back this up.