Every year your body replaces 98% of your atoms.
119
Enamel is hardest substance in the human body.
61
Dogs can be trained to identify the scent of lung cancer long before symptoms develop.
190
If you are cold you are more likely to be hungry because you use energy to keep warm.
143
If your DNA was stretched out it would reach to the moon 6,000 times.
256
Your thumb is about the same size as your nose.
124
One human hair can support 3 ounces.
191