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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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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
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The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.
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Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.
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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.