A third of the human population sneezes when they look at the Sun. Light can signal the ocular nerve near the sinuses and triggers a sneeze.
18
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
20
Your heart beats over 100,000 times a day!
54
The average human body contains enough fat to make seven bars of soap.
45
You can reschedule your sleeping pattern by not eating 12-16 hours before you want to be awake. Upon eating after this time period, your internal clock will reset to a new day, with the time of your first meal being interpreted as "morning".
10
Like fingerprints, everyone's tongue print is different!
71
It takes about 20 seconds for a red blood cell to circle the whole body.
102