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
A man's beard grows fastest when he anticipates sex.
239
In one day, adult lungs move about 10,000 litres of air.
11
The human sigh acts as a physiological reset button.
23
Yawns are more contagious among people with closer relationships.
163
Babies crawl an average of 200m a day.
212
If your DNA was stretched out it would reach to the moon 6,000 times.
256