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In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

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In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

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As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

A very high-resolution texture of the Moon, including a normal map A very high-resolution texture of the Moon, including a normal map
Normal lab values Normal lab values
Calipers being used to measure body fat on the triceps of a patient. Calipers being used to measure body fat on the triceps of a patient.
Normal rainfall has a concentration of OH- that is 3.99 × 10-9. The concentration of H3O+ in ... Normal rainfall has a concentration of OH- that is 3.99 × 10-9. The concentration of H3O+ in ...
Coelomate Body Plan: Earthworm Coelomate Body Plan: Earthworm
Newborns, infants, and children have a high percentage of body weight composed of water... Newborns, infants, and children have a high percentage of body weight composed of water...
Video: Evolutionary tree of life Animation

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