On average, there's 100 billion neurons in the human brain.
83
According to one report, it would take 800 marijuana joints to kill a person - but the cause of death would be carbon monoxide poisoning.
176
Cigarette smoke contains 4,800 chemicals, 69 of which cause cancer.
145
When you get goosebumps and your hair stands, the hair helps to trap air, making you feel warmer by keeping in your body heat.
46
If your stomach didn't produce a new layer of mucous every two weeks, it would digest itself.
33
The average person who stops smoking requires one hour less sleep a night.
79
Applying vodka to your face helps tighten your pores and can reduce the risk of acne breakouts.
19
Enamel is hardest substance in the human body.
61