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Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

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The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

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Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

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The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

The genetic code. The genetic code.
The diaphragm: The major muscle of breathing. The diaphragm: The major muscle of breathing.
Formation of noval protein kinase gene by chromosomal translocation Formation of noval protein kinase gene by chromosomal translocation
Your Body Digests, Absorbs, and Synthesizes Protein Your Body Digests, Absorbs, and Synthesizes Protein
Preload is related to the amount of blood and stretching of the ventricular myocardial fibers Preload is related to the amount of blood and stretching of the ventricular myocardial fibers
The three-dimensional structure formed of a protein The three-dimensional structure formed of a protein
Video: Optic Nerve and Optic Disk Animation (Part 2 of 2)

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