A new study shows that more than half of Americans underestimate or misunderstand the cancer risks linked to drinking alcohol. Credit: Shutterstock Key Findings Most Americans don't realize the cancer risks of alcohol. More than half of U.S. adults either underestimate or misunderstand how drinking increases cancer risk. Regular drinkers are the least aware. People who consume alcohol are especially likely to believe that drinking has no impact on cancer risk. Better awareness could save lives.