It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
One human hair can support 3 ounces.
191
The human brain doesn't stop developing until about 25 years old.
102
Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18
Dogs can be trained to identify the scent of lung cancer long before symptoms develop.
190
The largest cell in the human body is the female egg and the smallest is the male sperm.
682
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
22
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92