Heavy drinking is associated with brain lesions, according to a new study

Heavy drinkers had a 133% higher chance of having brain lesions compared with nondrinkers, a study found. A medical expert explains how much alcohol is too much.

​ Heavy drinkers had a 133% higher chance of having brain lesions compared with nondrinkers, a study found. A medical expert explains how much alcohol is too much. Read More Breaking News, Latest News and Videos | CNN