On the contrary, that's why it's perfect. There is so much evidence in so many different context that positive reinforcement yields better results than negative.
I meant like, when someones heart stops and gets restarted again with cpr or a defibrillator or something. People often call that being dead, and coming back.
The heart beating is not a good definition of being alive in my opinion.
The heart stopping temporarily doesn't mean you died, you were just in terribly grave danger.
If a person is defined by their heart, what does that make a heart transplant?
dicks out