The Black Death changed the world. As the most profound epidemic in human history, the plague claimed the lives of millions, with nearly half of Europe's population perishing from the disease. Some feared they were living through the...

Learn the personal pronouns in Spanish and how to conjugate the verb "tener" (to have).

Here we look at some psychological field experiments, such as Hofling's study of nurse obedience, Fischer's test of the cognitive interview and the Pilliavins' research on samaritanism, to show what they offer psychologists compared to...

Stephen teaches in Public School 55 in New York City’s South Bronx, the poorest Congressional District in America. His big idea – pioneered in the Bronx where 37% of residents are food insecure – is to grow food indoors and...

In this episode of Healthcare Triage, Dr. Aaron Carroll gets some surprised questions from "friend of Obama" John Green who is still waiting for his big government giveaway . Unfortunately, insurance still costs money, and it's still...

Food handlers can spread germs from their hands to food. When someone eats the contaminated food they may become sick with a foodborne illness. Proper handwashing is one of the most important things a food handler can do to keep the...