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

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Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

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More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.

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As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

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Thyroid conditions may make getting pregnant impossible.

Cultured HeLa cells have been stained with Hoechst turning their nuclei blue Cultured HeLa cells have been stained with Hoechst turning their nuclei blue
Adult blue whale from the eastern Pacific Ocean Adult blue whale from the eastern Pacific Ocean
The dorsal (red) and ventral (blue) body cavities. The dorsal (red) and ventral (blue) body cavities.
The chemical structure of mescaline, derived from the peyote cactus The chemical structure of mescaline, derived from the peyote cactus
Major bone (tan) and cartilage (light blue) elements of the human skeleton. Inset shows regions of v Major bone (tan) and cartilage (light blue) elements of the human skeleton. Inset shows regions of v
Video: Membrane Protein and Facilitated Transport (Passive Vs Active)

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