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Did you know?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

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Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

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Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.

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The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

The human oxygen-hemoglobin dissociation curve. The human oxygen-hemoglobin dissociation curve.
Sites of mtDNA mutations in certain human diseases Sites of mtDNA mutations in certain human diseases
Human Embryogenesis Human Embryogenesis
Human immunodeficiency virus (HIV) micrograph Human immunodeficiency virus (HIV) micrograph
Zooming in on the respiratory membrane in human lungs Zooming in on the respiratory membrane in human lungs
Functional Regions of the Human Brain Functional Regions of the Human Brain
Video: Oxygen transport: association and dissociation & Factors that affect hemoglobin's saturation with O2

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