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Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.
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More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
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More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.
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Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.
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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.