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Excessive alcohol use costs the country approximately $235 billion every year.
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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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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
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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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People about to have surgery must tell their health care providers about all supplements they take.