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The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

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All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

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Vaccines prevent between 2.5 and 4 million deaths every year.

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HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Large regions of the Boreal forest in Alberta have been divided into a grid due to industrial develo Large regions of the Boreal forest in Alberta have been divided into a grid due to industrial develo
The Very Large Array (VLA) The Very Large Array (VLA)
Ardipithecus kadabba has large canine teeth that are only slightly smaller than those of living apes Ardipithecus kadabba has large canine teeth that are only slightly smaller than those of living apes
Seven black members of Congress in 1871 are from left to right: Senator Hiram Revels (R-MS) and Repr Seven black members of Congress in 1871 are from left to right: Senator Hiram Revels (R-MS) and Repr
Polyps, or abnormal growths, on the lining of the large intestine may indicate early stages of colon Polyps, or abnormal growths, on the lining of the large intestine may indicate early stages of colon
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