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People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

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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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The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

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Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

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Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

Schematic overview of the cardiovascular system. Schematic overview of the cardiovascular system.
Cerebrovascular accident. Cerebrovascular accident.
The cardiovascular system. The cardiovascular system.
Step Test for Cardiovascular Endurance. Step Test for Cardiovascular Endurance.
Landmarks for cardiovascular assessment Landmarks for cardiovascular assessment
Barry Bonds hits a 125m (450') home run that lands in the stands at an altitude 30m above its ... Barry Bonds hits a 125m (450') home run that lands in the stands at an altitude 30m above its ...
Video: The pH scale - Strong acids and Weak acids

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