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Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

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Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

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Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

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The familiar sounds of your heart are made by the heart's valves as they open and close.

Horses require routine hoof care Horses require routine hoof care
Traction is the application of a pulling force to maintain bone alignment during fracture healing. D Traction is the application of a pulling force to maintain bone alignment during fracture healing. D
Ishihara color plate for testing color blindness. Ishihara color plate for testing color blindness.
Trichromatic Theory of Color Vision Trichromatic Theory of Color Vision
Many patients in wheelchairs require assistance. Many patients in wheelchairs require assistance.
The method of Land’s (1977) color-vision experiments. Subjects viewed Mondrians illuminated by ... The method of Land’s (1977) color-vision experiments. Subjects viewed Mondrians illuminated by ...
Video: Red alga life cycle Animation

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