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Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

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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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The familiar sounds of your heart are made by the heart's valves as they open and close.

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HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

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Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

Lions mating in Ngorongoro Conservation Area, Tanzania Lions mating in Ngorongoro Conservation Area, Tanzania
Female leopard in the Sabi Sands area of South Africa. Note the white spot on its tail, used for com Female leopard in the Sabi Sands area of South Africa. Note the white spot on its tail, used for com
Firing Patterns of a Supplementary Motor Area Neuron Firing Patterns of a Supplementary Motor Area Neuron
Osmosis: Water moves from an area of low solute concentration to an area of higher solute ... Osmosis: Water moves from an area of low solute concentration to an area of higher solute ...
Standing at the head of the table, apply oil or lotion to chest area. Spread lubricant fanning out ... Standing at the head of the table, apply oil or lotion to chest area. Spread lubricant fanning out ...
Basic massage practice office area. Basic massage practice office area.
Video: Structures that affect circulation - arterioles and vasomotor responses and venous return

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