Cardiac Arrest is the cessation of the pumping of the heart.
This will resulted in a sudden stop of effective blood circulation and make your body doesn't get enough oxygen supply that could lead to death if not given an immediate treatment
With flirting, the actions are two sided, but with sexual harassment the actions are one sided. If they are two sided then both people feel safe and respected. But if they are one sided one person feels harassed.
The answer should be flexibility workout.
I think it is natural selection. genetic variation also could be a factor for physical variation over the years.
