What brings on itches in the first place, and why does scratching provide such welcome relief?
Is it really possible to be a chocolate addict in the same way that someone might be addicted to drugs?
Chow down salty chips or pretzels, and soon you'll be guzzling your favorite drink. But snacking on sugary foods makes you thirsty, too.
According to one study, the skulls of some Americans have actually grown over the past 120 or so years.
Scientists have successfully employed a prosthesis to recoup lost brain power in lab monkeys. Could humans be next?
Around age 20, we begin to lose neurons to the process of aging. By 75, nearly one-tenth of the neurons you were born with have died.
Most reflexes do not involve the brain; they are fast, involuntary responses that travel over what is known as a reflex arc.
Find out how pain travels along the body's complex nerve highway.
Scientists studying zebra finch brains have identified about 2000 vocalization genes in a brain region known as Area X.
Find out why some birds really do keep one eye open and how they do it.