The average sperm cell swims at 8 inches per hour.
76
You see your nose at all times, your brain just chooses to ignore it.
30
If your DNA was stretched out it would reach to the moon 6,000 times.
256
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
19
The human brain uses approximately as much energy as a 10 watt light bulb.
120
The average person's skin weighs twice as much as their brain.
131