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Did you know?
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.
Did you know?
Human kidneys will clean about 1 million gallons of blood in an average lifetime.
Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.
Did you know?
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.
Did you know?
The average adult has about 21 square feet of skin.