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Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.
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?
Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
Did you know?
Blood is approximately twice as thick as water because of the cells and other components found in it.
Did you know?
Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.