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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.
Vaccines prevent between 2.5 and 4 million deaths every year.
The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
If all the neurons in the human body were lined up, they would stretch more than 600 miles.