When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
In ancient Egypt, priests plucked EVERY hair from their bodies, including their eyebrows and eyelashes.
130
One human hair can support 3 ounces.
191
Cats have a weak sense of taste. They have only 473 tastebuds, humans have 9,000.
307
Your fingernails grow faster in summer.
744
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
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
199
The human brain doesn't stop developing until about 25 years old.
102