Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
-137
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
199
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
Our brains have a negativity bias and will remember bad memories more than good ones.
15
Enamel is hardest substance in the human body.
61
Modern humans first appeared about 200,000 years ago, but record keeping didn't begin until about 6,000 years ago. That means about 97% of human history is lost.
21