Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
A human brain produces as many as 12,000 to 50,000 thoughts per day, depending on how deep a thinker a person is.
23
Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
346
The largest cell in the human body is the female egg and the smallest is the male sperm.
682
Pain occurs when sounds are above 130 db.
124
We forget why we have entered a room because passing through doors creates an ‘event boundary’ causing the brain to file away what we were just thinking about.
26
An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
73
Poor eyesight (myopia) is associated with higher IQ.
232