Why do we age? Science didn't really start investigating that question until the 1960's.
Have you ever heard that older people need less sleep?
Scientists have been experimenting with ways to tackle problems like the muscle loss that occurs with aging. Learn more on this Moment of Science.
Since time slows down the closer you get to the speed of light, if alien spaceships could travel at light speed, wouldn't they take longer to get places?
Do you know women who are self-conscious about whiskers?
As you may already know, heart disease is one of the leading causes of death in people who are older than sixty-five. What’s more, there’s a growing body of evidence that emotional stress can contribute to cardiovascular disease.