What cause most deaths worldwide? All time mortality rate report!
Most deaths are upon health issues, official statistics show http://en.wikipedia.org/wiki/List_of_causes_of_death_by_rate
Although morally speaking it seems that the no1 unofficial cause is abortion.
Anyway the point of the video is to move your body and eat healthy, then prepare for any kind of life events.
Respect for people that are learning, living, loving and leaving a legacy!