Our brains have a negativity bias and will remember bad memories more than good ones.
15
The human sigh acts as a physiological reset button.
23
Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
-137
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
On average a woman has 4 sexual partners in her lifetime.
-143
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
The world's shortest man measures only 21.5 inches.
73