Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.
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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
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The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.
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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.
adenine and cytosine
Cytosine vs. Thymine vs. Uracil
Deamination of cytosine and adenine, leading to new base pairing and mutation