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On average, the stomach produces 2 L of hydrochloric acid per day.

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Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

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The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.

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The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

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Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

Ancient Giant Virus Ancient Giant Virus
Some viruses, such as the tobacco mosaic virus, use RNA as their genetic material Some viruses, such as the tobacco mosaic virus, use RNA as their genetic material
Influenza virus. Influenza virus.
A Herpesviridae virus, the herpes simplex virion. It has an icosahedral capsid with double-stranded ... A Herpesviridae virus, the herpes simplex virion. It has an icosahedral capsid with double-stranded ...
Herpes simplex virus sore on the lip Herpes simplex virus sore on the lip
A culex tarsalis mosquito, a common vector of the spread of West Nile virus. A culex tarsalis mosquito, a common vector of the spread of West Nile virus.
Video: Michaelis–Menten equation & Kinetic parameters

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