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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.
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.
Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
In 1864, the first barbiturate (barbituric acid) was synthesized.





