The human sigh acts as a physiological reset button.
23
There are about 1,400 different species of bacteria in your belly button.
10
After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
55
When you get goosebumps and your hair stands, the hair helps to trap air, making you feel warmer by keeping in your body heat.
46
The human body contains over a billion miles of DNA.
147
The human brain uses approximately as much energy as a 10 watt light bulb.
120
There's 100 trillion good bacteria living in your body.
17