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Did you know?

The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

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Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

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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.

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Asthma cases in Americans are about 75% higher today than they were in 1980.

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Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

Experimental evidence of the effect of allelochemicals on plant production. Experimental evidence of the effect of allelochemicals on plant production.
Photosynthetically active radiation (PAR) diminishes substantially with passage through the canopy o Photosynthetically active radiation (PAR) diminishes substantially with passage through the canopy o
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Effect of Perceived Price of a Drug on Placebo Analgesia Effect of Perceived Price of a Drug on Placebo Analgesia
Earth emits radiation back out to space from all surfaces, both day and night Earth emits radiation back out to space from all surfaces, both day and night
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