After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
The skin on your lips is 200 times more sensitive than your fingertips.
345
You see your nose at all times, your brain just chooses to ignore it.
30
In the average lifetime a person will breath in about 44 pounds of dust.
21
Your heart rate can rise as much as 30% during a yawn.
69
The human brain uses approximately as much energy as a 10 watt light bulb.
120
If you cut a 'V' shape into your toe nails, you can prevent 'in-grown' toe nails.
22