Redheads require more anesthesia to 'go under' than other hair colors do.
50
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Fingernails grow fastest on the hand you favor.
44
Dieters who sleep more take off more fat that those who sleep less.
159
Some people have a "natural alarm clock" allowing them to wake up when they want. This is actually caused by a burst of the stress hormone adrenocorticotropin.
15
In older people, memory is best early in the morning and then declines during the late afternoon.
33
The average female will have 3.3 pregnancies in her life.
49
Your wounds heal faster if you lick them, you instinctively do this for that reason. Tears help, too.
20