Fingernails grow nearly 4 times faster than toenails.
31
Most dreams last only 5 to 20 minutes.
79
In older people, memory is best early in the morning and then declines during the late afternoon.
33
When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
Chewing gum boosts your brain power.
285
One quarter of the human brain is used to control the eyes.
43
Children are more allergic to cockroaches than they are to cats!
46
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