Adults who drink alcohol due to external pressures are at higher risk of consuming more and experiencing negative outcomes compared to those who drink for pleasure, a new study reports. The research was conducted by David Conroy, professor at the University of Michigan School of Kinesiology, with Jimikaye Courtney from the University of North Carolina and Michael Russell from Penn State University.
The team identified four profiles of adult drinkers by examining psychological motivations behind alcohol use. According to their findings, “pleasure drinkers” tend to be older adults who consume alcohol for enjoyment and have greater autonomy in their choices. In contrast, “externally controlled drinkers,” mostly young adults, are influenced more by peer pressure.
Heavy episodic drinking—defined as four or more drinks for women or five or more for men—remains common through age 25 and increases risks such as injuries and mental health issues. The study suggests that promoting personal choice over social pressure may help young adults make safer decisions about drinking.
“Alcohol use, misuse and the resulting negative consequences represent a significant public health challenge across adulthood, especially among young adults under 30,” said Conroy.
The research used Self-Determination Theory to assess motivation levels based on autonomy and perceived control. Five behavioral regulations for drinking were evaluated using the Comprehensive Relative Autonomy Index for Drinking.
Researchers analyzed self-reported data from 630 adult participants (average age 21.5 years; 55% female; 88% undergraduate students) and determined that a four-profile model best explained differences in alcohol consumption and consequences.
The profile associated with the highest risk was the externally controlled drinker group, which reported both higher drinking intensity and more negative consequences than other groups.
On the other hand, pleasure drinkers experienced better overall outcomes despite consuming more alcohol than aimless drinkers. Pleasure drinkers reported significantly more positive consequences but similar levels of negative effects compared to aimless drinkers. This suggests that drinking mainly for enjoyment may not lead to as many harmful results.
Men were found to be more likely than women to fall into the aimless drinker category, indicating a stronger influence from peer pressure even without clear motivation or enjoyment.
This study appears in Alcohol: Clinical & Experimental Research journal. It was supported by funding from the National Institute on Drug Abuse.
The University of Michigan Ann Arbor is a public research university established in Detroit in 1817 before moving its main campus to Ann Arbor in 1837 (official website). It operates additional campuses in Dearborn and Flint (official website) and offers diverse academic programs while advancing knowledge across fields (official website).

