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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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The average office desk has 400 times more bacteria on it than a toilet.

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Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

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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.

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Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

World human population growth through history illustrates an exponential growth pattern. World human population growth through history illustrates an exponential growth pattern.
A Royal Bengal Tiger, the largest big cat in Bannerghatta National Park, India A Royal Bengal Tiger, the largest big cat in Bannerghatta National Park, India
Eighteen-year-olds were the largest age cohort in the first year of the war in both armies. Soldiers Eighteen-year-olds were the largest age cohort in the first year of the war in both armies. Soldiers
Ulysses S. Grant poses at City Point, Virginia, during the siege of Petersburg. Ulysses S. Grant poses at City Point, Virginia, during the siege of Petersburg.
A second jetliner approaches the south tower of the World Trade Center on September 11, 2001. The no A second jetliner approaches the south tower of the World Trade Center on September 11, 2001. The no
Frederick Law Olmsted and Calvert Vaux, Central Park, New York City. Frederick Law Olmsted and Calvert Vaux, Central Park, New York City.
Video: Definitions of stroke volume, preload definition & Factors influencing stroke volume

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