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About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

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To maintain good kidney function, you should drink at least 3 quarts of water daily. Water dilutes urine and helps prevent concentrations of salts and minerals that can lead to kidney stone formation. Chronic dehydration is a major contributor to the development of kidney stones.

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Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

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The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

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Facing the table, place one hand on the thigh and the other on the lower leg. Gently rock the leg ... Facing the table, place one hand on the thigh and the other on the lower leg. Gently rock the leg ...
Apply knee to chest stretch for posterior hip and leg muscles. Facing the table directly, place one ... Apply knee to chest stretch for posterior hip and leg muscles. Facing the table directly, place one ...
Knead the calf muscles with both hands. Place the foot flat on the table, knee bent. Reach behind ... Knead the calf muscles with both hands. Place the foot flat on the table, knee bent. Reach behind ...
Diaphragm relaxation technique. (A) Place the thumb on the metatarsal head of the big toe. (B) Bend ... Diaphragm relaxation technique. (A) Place the thumb on the metatarsal head of the big toe. (B) Bend ...
Brushing off to finish-front. Move to the front and place the person’s hands on his or her knees. ... Brushing off to finish-front. Move to the front and place the person’s hands on his or her knees. ...
Video: Chemical Synapse Animation

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