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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Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.
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There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.
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Your heart beats over 36 million times a year.
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Cyanide works by making the human body unable to use oxygen.
Structure of a eukaryotic flagellum
The structure and function of the human testis.
Structure of a paramecium
Historian James Merrell notes several errors in Benjamin West’s famous 1771 painting, William Penn’s