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There are more sensory neurons in the tongue than in any other part of the body.
About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.
Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.