What I saw in the update: You regen hp, if you kills some monsters and let it a little bit to rest, data got reseted, I do not see tutorial regarding losing hp yet, but I see 2 new hammers there.
Hiya thanks for commenting on it! It's a bit hard to miss because the tutorial is only available the first time you start the game. It might be a good idea for us to have some kind of "?" info button somewhere so people can read the tutorial again