The average sperm cell swims at 8 inches per hour.
4
Our brains have a negativity bias and will remember bad memories more than good ones.
15
In one day, adult lungs move about 10,000 litres of air.
11
Humans are capable of running 40 mph according to a study by bio-mechanical expert Dr. Matthew Bundle. Today's fastest man, Usain Bolt, has a top speed of 28 mph.
34
Pain occurs when sounds are above 130 db.
124
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
We forget why we have entered a room because passing through doors creates an ‘event boundary’ causing the brain to file away what we were just thinking about.
26
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14