Dogs can be trained to identify the scent of lung cancer long before symptoms develop.
190
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
The human body contains over a billion miles of DNA.
147
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
Enamel is hardest substance in the human body.
61
The largest cell in the human body is the female egg and the smallest is the male sperm.
682
An Indian man known as "Snake Manu" can put small snakes, including deadly cobras, into his mouth and pass them out through his nose.
59