Answer:
The heart is a muscular organ about the size of a fist, located just behind and slightly left of the breastbone. The heart pumps blood through the network of arteries and veins called the cardiovascular system.
Because at some point our organs get tired and weak from all the years of pumping and circulation etc. so at some point our bodies just can't do that forever...
It’s not rare but it will happen
I would say its 2. Working with harsh chemicals
The Answer It A becuase Staying Outside will mess you up
