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About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

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The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.

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Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

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There are more nerve cells in one human brain than there are stars in the Milky Way.

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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

Conjugate acid-base pairs consist of a proton donor and a proton acceptor Conjugate acid-base pairs consist of a proton donor and a proton acceptor
Prevalence of drug use in the United States. Figures are based on a survey of people 12 years of age ... Prevalence of drug use in the United States. Figures are based on a survey of people 12 years of age ...
Survey of conserved nucleotides in E. coli promoters Survey of conserved nucleotides in E. coli promoters
Survey and posture of client: Lateral view Survey and posture of client: Lateral view
Statistics Canada, Labour Force Survey Statistics Canada, Labour Force Survey
Video: Digestive chemicals - types & enzymes

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