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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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It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

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Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

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There are 60,000 miles of blood vessels in every adult human.

Mononucleosis is caused by the Epstein–Barr virus. Symptoms of the infectious disease are swollen pa Mononucleosis is caused by the Epstein–Barr virus. Symptoms of the infectious disease are swollen pa
Urinary tract infection. A UTI is characterized by fever, lumbar or abdominal pain, and pain or burn Urinary tract infection. A UTI is characterized by fever, lumbar or abdominal pain, and pain or burn
Formation of blood cells Formation of blood cells
(A) Blood vessels and the capillary connection. (A) Blood vessels and the capillary connection.
Blood pressure measurements: Auscultation of blood pressure Blood pressure measurements: Auscultation of blood pressure
Branching Blood Vessels Branching Blood Vessels
Video: Energy inputs and release in glycolysis Animation

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