The human brain uses approximately as much energy as a 10 watt light bulb.
120
By weight, Bone is five times stronger than steel.
417
Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
26
Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
According to a 1950s survey, 75% of men ejaculate within two minutes of penetration.
109
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Only 1% of bacteria cause disease.
45