Your body is creating and killing about 2.4 million red blood cells per second.
17
The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15
We are born with 350 bones, and die with 206.
135
Human hair and fingernails continue to grow after death.
7
Bearing a male child can alter a woman's brain by leaving male DNA that can persist for the rest of her life, making her less likely to suffer from Alzheimer's disease, promote tissue repair, and improve her immune system.
16
Children are poisoned most frequently by eating harmful plants.
13
The brain receives 20% of the body’s oxygen and 25% of total body glucose utilization, despite it accounting for only 2% of a person’s weight (about 1.4 kilograms).
8
If you cut a 'V' shape into your toe nails, you can prevent 'in-grown' toe nails.
22