Alcohol abuse

The Midwest saw the biggest spike of heart infections cases linked to drug abuse.

Scientists were able to identify conditions using data from social media.

Scientists believe even drinking in moderation can have a negative affect on how the body generates energy.

The drug has also been eyed to treat depression and PTSD.

Nicotine may increase risk of abusing other substances.

An outside researcher called this a "slam dunk" in showing that alcohol could increase dementia risk.

Excessive drinking could impair learning capacity by 3 percent to 5 percent.

The findings could pave the way for new treatments.