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Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

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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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Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.

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The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

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HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Examples of deep-sea corals found in the Sable Gully, 200 km off the coast of Nova Scotia. Examples of deep-sea corals found in the Sable Gully, 200 km off the coast of Nova Scotia.
Hydrolysis reactions for some biochemically important phosphate compounds (part 2) Hydrolysis reactions for some biochemically important phosphate compounds (part 2)
How to convert between imperial and metric units (Part 3) How to convert between imperial and metric units (Part 3)
Inadequate Airway, Breathing and Circulation in the Trauma Patient (Part 1) Inadequate Airway, Breathing and Circulation in the Trauma Patient (Part 1)
Annotation of a DNA sequence containing part of the human beta-globin gene Annotation of a DNA sequence containing part of the human beta-globin gene
Plot of land (Part a) Plot of land (Part a)
Video: Contraction cycle of a sarcomere

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