how many humans are in the world
7.8 billion
how many people die a day
151,600
how many whomans are born a day
3,900,750
how long can humans live
115 +
how long can people live without water
3 days
how long can humans live without food
8-21
how long can humans live without oxegen
3 min
how long can people sleep
9 - 10 hours
how long does it take to digest food
24 to 72 hours
