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Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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People about to have surgery must tell their health care providers about all supplements they take.
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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.
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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.