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More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

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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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About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

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If you could remove all of your skin, it would weigh up to 5 pounds.

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Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Size varies greatly among horse breeds, as with this full-sized horse and a miniature horse. Size varies greatly among horse breeds, as with this full-sized horse and a miniature horse.
Using a digital multimeter to test an oxygen sensor using the MIN/MAX record function of the meter. Using a digital multimeter to test an oxygen sensor using the MIN/MAX record function of the meter.
How to find the second derivative of a function How to find the second derivative of a function
Hormones that act through second messengers involve a three-protein module Hormones that act through second messengers involve a three-protein module
How to reflect the quadratic function relative to the x-axis How to reflect the quadratic function relative to the x-axis
Transfer of endosymbiont genes to the nuclear genome and destinations of encoded protein products Transfer of endosymbiont genes to the nuclear genome and destinations of encoded protein products
Video: Regulation of GFR: autoregulation via tubuloglomerular feedback, neural & hormonal regulation

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