Your fingernails grow faster in summer.
744
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
Yawns are more contagious among people with closer relationships.
163
You forget 90% of your dreams.
256
The human brain uses approximately as much energy as a 10 watt light bulb.
120
The human brain is more active during sleep than during the day.
28
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
161