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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When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.
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People about to have surgery must tell their health care providers about all supplements they take.
Plains zebra are highly dependent on water.
Impetigo, a highly contagious bacterial infection.
Because the leg muscles of children with muscular dystrophy are weak, they must perform the Gowers’
A recruiting poster for the “True Sons of Freedom” encouraged African Americans to enlist. In fact,
Rocking out, baby style: The author’s daughter dances at her first birthday party.