Health goes all the way down.

I'm making a game where when you hit a hazard you lose one out of three hearts. Though when I test the game, I lose all my hearts with only one hit. Please help. Here is the events for my player.

Read through this  http://www.thestencylblog.com/blog/stencyl-events-do-this-only-once-please

Read through this  http://www.thestencylblog.com/blog/stencyl-events-do-this-only-once-please

Thank you.