After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
55
All humans have the ability to see ultraviolet light, but it is passively filtered out by the eye's lens. People who undergo surgery to remove the lens can detect ultraviolet light.
22
The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
21
A human being loses an average of 40 to 100 strands of hair a day.
133
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
Held in farts enter your bloodstream and are bad for your body.
26
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99