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Recent research unveils a troubling trend among young adults in their early 20s, revealing a significant surge in binge drinking and drug use within Generation Z. Contrary to the stereotype of a more responsible “generation sensible,” data indicates that nearly seven out of ten 23-year-olds admitted to binge drinking over the past year, with drug experimentation rising sharply.
Binge Drinking Rates Soar
A study conducted by University College London (UCL) provides a stark analysis of substance use patterns among nearly 10,000 individuals born in the UK between 2000 and 2002, participants in the Millennium Cohort Study. The findings show that 68% of those aged 23 reported binge drinking at least once in the previous year, a considerable increase from 53% at age 17. Defined as consuming six or more alcoholic drinks in one sitting, this rise raises red flags about the evolving relationship young people have with alcohol as they transition into adulthood.
Drug Use on the Upswing
In tandem with increased alcohol consumption, drug use among this age group has also escalated. The UCL study found that 49% of 23-year-olds have experimented with cannabis, a significant increase from 31% at age 17. More alarming is the tripling of those who have tried harder drugs—such as cocaine, ketamine, and ecstasy—rising from 10% to 32%. Furthermore, those reporting use of harder drugs ten times or more in the past year jumped from 3% to 8%.

The data challenges notions that younger generations are opting for healthier lifestyles. Dr Aase Villadsen, the lead author of the study, highlighted that previous reports suggested a shift away from alcohol among young people. However, the current evidence points to a worrying trend of risky behaviour as they navigate early adulthood.
Other Addictive Behaviours Increasing
The study also revealed that addictive behaviours extend beyond substance use. Approximately 32% of the cohort reported engaging in gambling activities by age 23, although only 4% classified their gambling habits as problematic. Additionally, daily vaping has surged, with usage rising from 3% at age 17 to nearly one in five (19%) at age 23. In contrast, smoking rates remained relatively stable, increasing slightly from 8% to 9%.
Dr Villadsen cautioned that while experimentation is common during this life stage, the significant uptick in binge drinking and drug use raises alarm bells about the potential for these behaviours to become entrenched.
The Role of Environment and Policy
Dr Katherine Severi, the chief executive of the Institute of Alcohol Studies, echoed these concerns, emphasising the vulnerability of young people’s developing brains, which can be adversely affected by alcohol consumption. She noted that, despite the narrative that young people are drinking less, this study indicates that Gen Z may be drinking as heavily, if not more so, than millennials did at the same age.

Severi further pointed to the environmental factors influencing these trends, stating that the affordability, accessibility, and promotion of alcohol significantly contribute to drinking behaviours. She urged universities to take proactive steps to safeguard student health, highlighting the need for institutions to evaluate their commercial relationships with alcohol companies and prioritise student wellbeing over profit.
Why it Matters
The findings from the UCL study underscore a critical turning point for Generation Z, as increased binge drinking and drug use pose significant public health challenges. As young adults face the pressures of university life and societal expectations, understanding and addressing these behaviours is vital. Effective policy interventions and educational programmes must be implemented to support at-risk individuals, ensuring that young people can navigate their formative years without succumbing to harmful habits. The stakes are high, and the time for action is now.