By Rachael Rettner, Senior Writer | November 1, 2016

DENVER — People who use alcohol and marijuana together may be at greater risk for alcohol-related problems, such as drunken driving and poorer health, than those who use only alcohol, a new study finds.

Of the more than 2,400 people who said they drank alcohol in the past year, 70 percent said they used alcohol only, 18 percent said they tended to use alcohol and marijuana simultaneously, and 13 percent said they used both drugs, but separately… Those who used both drugs simultaneously reported drinking more frequently, and consuming higher amounts of alcohol, than those who said they used both substances separately, as well as those who used only alcohol, the researchers said.

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