Poor eyesight (myopia) is associated with higher IQ.
232
Enamel is hardest substance in the human body.
61
Chewing gum boosts your brain power.
285
Your thumb is about the same size as your nose.
124
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
One human hair can support 3 ounces.
191
Yawns are more contagious among people with closer relationships.
163