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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.
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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.
If all the neurons in the human body were lined up, they would stretch more than 600 miles.
There are more nerve cells in one human brain than there are stars in the Milky Way.