Marijuana can stunt brain development in minors. Frequent marijuana use, starting at a young age, can lower a person’s IQ up to five points over the years.

Long before Twilight and True Blood, Count von Count was the most famous vampire on TV — and millions of children learned to count with him daily. Now his voice, Jerry Nelson, has died.

What happens to impulsive people when they drink? What about when it comes to drinking and driving?

It is common knowledge that smoking cigarettes is bad for you. For those with Amyotrophic Lateral Sclerosis (ALS), also known as Lou Gehrig’s disease, smoking can be especially damaging.

Methadone has been used to treat heroin addiction since the 1960s . While keeping people off heroin is a good thing, methadone can hurt learning and memory function.

A study on how ecstasy during pregnancy might affect babies at 4 months old was published early this year. Now those babies are a year old. They're still developing slowly.

Which comes first: binge drinking or unemployment? Is binge drinking behavior different for women than it is for men? Read on for answers.

Dipping or using chew may not cause lung cancer, but oral cancer is still a big risk. Smokeless tobacco products have nitrosamines , which can cause cancer at high levels.

Treating addiction to painkillers may start with electronic monitoring of prescriptions. Doctor shopping and selling excess prescriptions may be a thing of the past.

The cough reflex works to eject toxins from the respiratory system. If the cough reflex doesn’t work right, respiratory infection risk is higher.