Our brains have a negativity bias and will remember bad memories more than good ones.
15
Yawns are more contagious among people with closer relationships.
163
Every human spent about half an hour as a single cell.
144
The average person will go on a date at least 100 times before they finally marry.
33
Your heart will pump about 212 million liters in its lifetime.
26
Tigers can see 6 times better at night than humans.
305
Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
-137
In one day, adult lungs move about 10,000 litres of air.
11