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Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

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Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.

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To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

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Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

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IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Comparison of the steps of two viral reproductive cycles. Comparison of the steps of two viral reproductive cycles.
Comparison of the steps of two viral reproductive cycles. Comparison of the steps of two viral reproductive cycles.
Herpes labialis Herpes labialis
Assessing risk for infection in adults Assessing risk for infection in adults
Types of fungi and a fungal infection of the palate. Types of fungi and a fungal infection of the palate.
Lungs showing appearance of acute histoplasmosis infection. Lungs showing appearance of acute histoplasmosis infection.
Video: Cellular Respiration & Glucose Mobilization (Glucose transport & Phosphorylation of Glucose)

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