The newest research finds people who drink too much in their 30s and 40s are more likely to commit drink-driving.
The researchers analyzed the drinking habits of nearly 1,000 people, asking how much they drank in a month and whether they were stopped for drunk driving.
They found that people in their 20s and 30s were at the highest risk, with an average of more than four drinks per month.
The researchers also found people who drank four or more drinks per week were also at greater risk.
Researchers say that the findings are important because it shows the dangers of drinking too much.
But the results also raise questions about the role of the alcohol in driving.
According to the researchers, the drinking patterns of the people who were stopped in the study showed the alcohol had an effect on driving.
“The effects of alcohol were more pronounced in younger drivers than older drivers,” said lead author Dr. Peter Hotez, a researcher at the University of Michigan.
“There was a tendency for older drivers to drink more and drive more than younger drivers, and the difference was statistically significant,” he said.
Hotez and his colleagues found that alcohol is a primary risk factor for drunk-driving deaths in the U.S.
Drinking a few beers a day, drinking a few drinks a month, or drinking more than a few times a month was associated with a 10 percent increase in risk of being killed in a drunk-drive crash.
Drink-driving is the fourth-leading cause of death in the country, according to the Centers for Disease Control and Prevention.