When you open a container of yogurt, you'll often see liquid collected on top. What is it, and where does it come from?
Wouldn't it be great if we could trade genes with other species?
A jar of honey that's been opened and resealed can stay on the shelf for years. Archaeologists have even found ancient jars with unspoiled honey inside.
Do antiperspirants stop all kinds of sweat? How do they work?
During World War 1 soldiers' maggot-infested wounds almost never became infected. What was going on?
Scientists believe they have a high-tech use for one of nature's natural anti-bacterial agents, ultraviolet light. They can use it to replace pasteurization.
As this watery sweat rinses your skin, it cools the body by evaporation--and even performs a community service by rinsing away potentially stinky bacteria!
Have you ever heard that too much stress causes stomach ulcers?
Got tooth decay? You are not alone.
Most people know illnesses like intestinal upsets can be caused by bacteria. They don't link bacteria with an illness like multiple sclerosis.