Sex burns about 360 calories per hour.
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A hard working adult sweats up to 4 gallons per day. Most of the sweat evaporates before a person realizes it's there, though!
25
The average human body contains enough iron to make a small nail.
50
The tongue is the strongest muscle in the human body.
50
Your heart pumps about 2,000 gallons of blood each day!
53
A new parent will lose about 1055.6 hours of sleep in the first year of their child's life - almost 44 days!
6
It has been said that over 350 million people suffer from Facebook Addiction Disorder.
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