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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.
If you could remove all of your skin, it would weigh up to 5 pounds.
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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.