Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18
A man's beard grows fastest when he anticipates sex.
239
In older people, memory is best early in the morning and then declines during the late afternoon.
33
Banging your head against a wall uses 150 calories an hour.
57
Your wounds heal faster if you lick them, you instinctively do this for that reason. Tears help, too.
20
Crushed cockroaches can be applied to a stinging wound to help relieve the pain.
31
On average, someone in the US suffers a stroke every 40 seconds; someone dies every 3 minutes from stroke.
56