The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.
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No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.
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Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
Pulse oximetry. The small device provides a digital readout of oxygen levels in the blood.
Blood pressure
Blood flow through the heart.
Blood pressure test
The phenotype of an organism is the product of interactions