When he was just 18, Dr. Chris Knowles had researchers visit his school in England for an experiment. They aimed to understand which inexperienced drinkers were most affected by alcohol and who might later develop drinking problems.
Knowles remembers how they placed two double vodkas in front of each student to observe their reactions. He quickly drank his and then, without hesitation, consumed both drinks meant for a nearby girl who wasn’t particularly fond of alcohol.
Now a professor of surgery at Queen Mary University of London, Knowles has explored the science behind excessive drinking in his recent book. He later sought treatment for alcohol use disorder due to his own experiences.
Research indicates that no level of alcohol is genuinely beneficial for the heart or brain. Yet, despite these findings—and often serious personal repercussions for many—heavy drinking remains quite prevalent. About 17% of U.S. adults report binge drinking, according to the US Centers for Disease Control and Prevention.
Reflecting on his drinking journey, Knowles describes it as a progression: ten years of enjoyment, followed by a decade of mixed experiences, and finally, a decade characterized by negative outcomes. His upcoming book, “Why We Drink Too Much: The Impact of Alcohol on Our Bodies and Culture,” delves into why people are drawn to alcohol.
Knowles offers a simple explanation for why people drink: “It’s fun. We learn that good things happen when we drink—or at least we believe they do.”
The deeper examination reveals insights into why certain individuals struggle more with drinking, even when it’s evident that it’s not benefiting them.
He recalls that during his early drinking days, many friends consumed less than he did, while others drank far more without apparent complications. This observation seems to hold true in many social circles.
There isn’t always a direct link between drinking significantly and developing problems, Knowles explains. The way someone interacts with alcohol is influenced by a mix of their environment, biology, and psychology.
Alcohol activates the brain’s pleasure centers similarly to the rewards derived from essential needs like food and relationships. However, the effects of alcohol can also have a darker side.
As Dr. George Koob, director of the National Institute on Alcohol Abuse and Alcoholism, puts it, “The more you drink, the more you stress those neurotransmitters, leading to a miserable experience when not drinking.”
Koob elaborates, “You dig a hole, thinking drinking will fill it, but each time you do, the hole just gets deeper.”
People often assume some individuals are biologically predisposed to drink heavily—like a young Knowles with vodka. While there’s truth in this perspective, it doesn’t tell the whole story.
Dr. Danielle Dick, director of the Rutgers Addiction Research Center, emphasizes that a significant component of problematic drinking relates to how a person’s brain processes rewards and risks.
When people’s brains are wired to seek rewards and overlook risks, they’re more likely to develop a desire for alcohol.
Psychological factors also play a significant role in drinking behavior. Conditions such as ADHD, bipolar disorder, and PTSD heighten the risk of substance abuse. Additionally, traits like low self-esteem and anxiety can contribute.
On the other hand, those who drink purely for enjoyment usually don’t reach the point of dependency. Binge drinking at social events can still lead to health issues, but motivations for drinking vary widely.
Many individuals consume alcohol to enhance confidence, relieve stress, or escape unwanted memories, which can create challenges.
As Knowles points out, “If drinking is a problem, you might have a chance. But if it’s your solution, you’ve lost already.”
Turning to alcohol for relief makes quitting hard, especially when it appears to provide an escape.
There’s also the issue of developing a tolerance, which complicates the situation.
This isn’t just about how many drinks one can handle; it’s about the increasing quantity needed to achieve the same sense of relief or pleasure.
Dr. Dick stresses that it’s a spectrum. On one end, there are those who don’t drink at all, while at the other end are individuals with clinical alcohol use disorders, which can vary in severity.
Understanding the criteria for alcohol use disorder involves recognizing harmful effects on work and family life, dangerous situations, and withdrawal symptoms.
Those who identify as gray area drinkers sit somewhere in between. They might not have experienced serious consequences yet, but their drinking habits could still be damaging to their well-being.
Regardless of where someone falls on this spectrum, reducing alcohol intake can lead to health improvements.
Knowles suggests that changing one’s relationship with alcohol often starts with abstaining. Periods like “Dry January” can be helpful in assessing alcohol’s role in life.
Following that, it’s vital to understand the benefits and drawbacks of drinking, seek out supportive communities that don’t center on alcohol, and confront the psychological issues that drinking may have masked.
For gray area drinkers, this journey may involve exploring literature on sobriety, addressing stressors, and finding new social activities.
Interestingly, despite alcohol being deeply ingrained in social culture, current trends show younger generations are drinking less than those before them. There’s also a growing interest in mocktails and non-alcoholic drinks, which could provide enjoyable alternatives.
For those dealing with clinical alcohol use disorder, resources such as support groups and treatment centers are often vital.
The aim is to recalibrate how the brain seeks rewards and face the stressors linked to alcohol use, rather than simply trying to cut back.
As Koob underscores, maintaining sobriety is typically a lifelong journey, with many who succeed acknowledging that it’s an ongoing effort.





