When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
Tigers can see 6 times better at night than humans.
305
Our brains have a negativity bias and will remember bad memories more than good ones.
15
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
There are about 255 babies born worldwide every minute.
46
By weight, Bone is five times stronger than steel.
417
Early American humans hunted car-size armadillos and used their shells for houses.
12