how doe the heart sotp pumping?

Answer 1

by having a heartattack and the heart muscle dies and there is no electrical impulses going through the heart for it to contract.

Answer 2

The heart stops for a number of reasons.
Not enough fluid in the body=not enough blood = not enough nutrients and oxygen needed to sustain the heart to pump.or
not enough electrical impulses inthe brain=not enough impulses telling the heart to tick over= answer 1
causes are many.

Answer 3

by not using spell check