The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
Did you know?
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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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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In 1864, the first barbiturate (barbituric acid) was synthesized.
The mammalian respiratory system.
Lymphatic system.
Diseases and Disorders of the Respiratory System
Landsteiner's experiment demonstrating the exquisite specificity of the immune system.
Pi molecular orbital system of PLP-amino acid Schiff base