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Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

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Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

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The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

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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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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.

On the slopes of Chimborazo, a 6,310 m high volcanic peak in the Andes Mountains of Ecuador, Alexand On the slopes of Chimborazo, a 6,310 m high volcanic peak in the Andes Mountains of Ecuador, Alexand
Temperature Profile of Earth’s Atmosphere Temperature Profile of Earth’s Atmosphere
Body Temperature Responses Body Temperature Responses
a) Appropriate chair height b) Chair is too low c) Chair is too high a) Appropriate chair height b) Chair is too low c) Chair is too high
Setup used to check the opening temperature of a thermostat. Setup used to check the opening temperature of a thermostat.
Thermodynamic Diagrams and Vertical Temperature Profiles Thermodynamic Diagrams and Vertical Temperature Profiles
Video: Blood Test Basics

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