In older people, memory is best early in the morning and then declines during the late afternoon.
33
Human thigh bones are stronger than concrete!
63
Surgeons who listen to music during operations perform better than those who don't .
87
The human brain doesn't stop developing until about 25 years old.
102
The lifespan of a tastebud is ten days.
130
Fingernails grow nearly 4 times faster than toenails.
31
The average sperm cell swims at 8 inches per hour.
4
