When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
There are about 255 babies born worldwide every minute.
46
In one day, adult lungs move about 10,000 litres of air.
11
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
The human sigh acts as a physiological reset button.
23
By weight, Bone is five times stronger than steel.
417
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13