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Author Question: A sperm cell and an ovum each contribute 23, rather than 46, chromosomes to a zygote because they ... (Read 114 times) |
Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.
The longest a person has survived after a heart transplant is 24 years.
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.
In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.