In ancient Egypt, priests plucked EVERY hair from their bodies, including their eyebrows and eyelashes.
130
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
Crying literally alleviates stress and uniquely allows humans to decrease feelings of anger and sadness.
24
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
The human sigh acts as a physiological reset button.
23
The average sperm cell swims at 8 inches per hour.
4
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