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The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.

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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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In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

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Limit intake of red meat and dairy products made with whole milk. Choose skim milk, low-fat or fat-free dairy products. Limit fried food. Use healthy oils when cooking.

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The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

Lung Fissures, Right Lateral View Lung Fissures, Right Lateral View
Muscles of the right upper extremity back view Muscles of the right upper extremity back view
Ventral View of the Spinal Cord Ventral View of the Spinal Cord
A simplified view of ligand binding and conformation energies in hemoglobin A simplified view of ligand binding and conformation energies in hemoglobin
Anterior view of muscles of the human body Anterior view of muscles of the human body
Superior view of sphenoid bone in floor of cranium Superior view of sphenoid bone in floor of cranium
Video: Pores and Ion Channels

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