The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."
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About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.
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Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.
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Women are 50% to 75% more likely than men to experience an adverse drug reaction.
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More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.
Albert Einstein
Albert Bierstadt, Puget Sound on the Pacific Coast.
Albert Bierstadt, The Rocky Mountains, Lander's Peak, (detail).
A therapist assisting an amputee patient to regain mobility and strength after amputation.