Midlife Cannabis: Frequency Linked to CUD Risk

As cannabis use becomes more common among adults over 40, researchers are paying closer attention to how long-term and frequent use may affect health and dependency risk. A study published in Drug and Alcohol Dependence is now raising questions about cannabis use disorder (CUD) among middle-aged adults, particularly those using cannabis frequently for medical reasons.

At first glance, the findings may sound alarming. The study reported that adults aged 40 to 60 who used cannabis medically were more likely to report symptoms associated with cannabis use disorder than those using cannabis only recreationally. However, like many cannabis-related studies, the full story is far more nuanced than the headlines suggest.

Understanding what cannabis use disorder actually is, how it is measured, and why frequency of use matters is essential before jumping to conclusions. Let’s dive into the study and take a deeper look at their findings.

What Is Cannabis Use Disorder (CUD)?

Cannabis Use Disorder is a medical diagnosis used when a person’s cannabis consumption begins negatively affecting their daily life, relationships, responsibilities, or their ability to control use. Importantly, having one or two symptoms does not automatically mean someone has CUD. There is a spectrum ranging from mild to severe, and many symptoms can overlap with normal patterns seen in regular medical or therapeutic cannabis use.

According to diagnostic guidelines, symptoms of CUD can include:

• Using more cannabis than intended
• Difficulty cutting back despite wanting to
• Cravings or strong urges to use cannabis
• Spending excessive time obtaining or using cannabis
• Continued use despite social or health problems
• Reduced participation in important activities
• Developing a tolerance, meaning more cannabis is needed to achieve the same effect
• Experiencing withdrawal symptoms after stopping

Tolerance is particularly important in this conversation because the study found it was one of the most commonly reported symptoms among older adults and women in particuliar using medical cannabis. However, tolerance alone does not necessarily indicate problematic use. Many medications, including caffeine, antidepressants, opioids, and sleep aids, can produce tolerance over time. For medical cannabis patients managing chronic pain, insomnia, or other long-term conditions, increased tolerance may simply reflect consistent therapeutic use rather than CUD.

The Research Behind the Headlines

The study¹, titled Cannabis Use Disorder Risk Among Midlife Adults Reporting Medical and Nonmedical Cannabis Use, 2019–2024, analyzed data from 5,454 U.S. adults between the ages of 40 and 60 who reported cannabis use within the previous year.

Researchers used data from the long-running Monitoring the Future study and examined how medical cannabis use, cannabis frequency, and CUD symptoms were connected. Among all cannabis users surveyed:

• 23.9% reported at least one CUD symptom
• 9.4% met criteria associated with moderate or severe symptoms
• 49.7% of near-daily users reported some level of CUD symptoms

Initially, medical cannabis users appeared significantly more likely to report CUD-related symptoms than nonmedical users. Medical users reported higher rates of tolerance, cravings, and moderate-to-severe symptom classifications.

But then something important happened.

When researchers adjusted for frequency of cannabis use, nearly all of the associations between medical cannabis use and CUD disappeared. The increased risk was largely explained not by why people were using cannabis, but by how often they were using it. In other words, people using cannabis daily or near-daily had a greater likelihood of reporting symptoms associated with CUD regardless of whether they used cannabis medically or recreationally. That distinction matters enormously.

Why Frequency of Use Matters

Frequent cannabis use has long been recognized as one of the strongest predictors of “problematic use patterns”. This is not unique to cannabis. Many substances and medications become more likely to create dependence-related symptoms when used heavily or consistently over time.

Medical cannabis patients are often more likely to use cannabis frequently because they are treating ongoing conditions such as:

• Chronic pain
• Arthritis
• Neuropathy
• Sleep disorders
• Anxiety
• Cancer-related symptoms

Someone managing severe pain may use cannabis multiple times per day in the same way another patient takes prescription medications daily. This creates a challenge in cannabis research because diagnostic tools for CUD do not always distinguish between therapeutic dependence and harmful compulsive behavior. For example, a patient using cannabis every evening for chronic insomnia could develop tolerance over time while still maintaining healthy relationships, employment, and quality of life. Technically, that may contribute toward a CUD symptom count even if the person is functioning well.

Why This May Not Be the Whole Picture

The study offers valuable insight, but there are several reasons the findings should be interpreted carefully. To begin, the research relied on self-reported survey data rather than clinical evaluations. Participants reported their own symptoms and cannabis habits, which can introduce inconsistencies or misunderstandings.

Additionally, many CUD diagnostic criteria were originally adapted from frameworks used for other substances, including alcohol and opioids. Cannabis behaves differently pharmacologically, and some researchers argue that current definitions may overestimate problematic use among regular consumers, especially medical patients.

The study also did not deeply examine why participants were using cannabis medically. Someone using cannabis heavily while battling chemotherapy side effects or debilitating pain may appear statistically similar to someone engaging in compulsive recreational overuse, even though the context is dramatically different. The researchers themselves acknowledged that frequency explained most of the observed risk differences between medical and nonmedical users.

Older Adults and Cannabis Use Are Changing

Cannabis use among older adults has risen dramatically over the past decade as legalization expands and stigma declines. Many adults who once avoided cannabis are now exploring it for pain management, sleep support, or overall wellness.

The study found adults aged 55 to 60 showed somewhat stronger associations with moderate or severe CUD symptoms compared to adults aged 40 to 50. Researchers also observed that female medical users appeared more likely to report tolerance symptoms after accounting for use frequency.

These findings deserve further investigation, but they do not necessarily prove that medical cannabis causes addiction at unusually high rates. Instead, they reinforce the importance of responsible cannabis use, honest patient education, and individualized care.

Final Thoughts: What Consumers Can Take Away

The biggest takeaway from this research is not that medical cannabis is dangerous. Instead, the findings reinforce something researchers have observed for years: frequent cannabis use may increase the likelihood of developing dependence-related symptoms for some individuals, regardless of whether the use is medical or recreational.

That conversation deserves honesty and nuance, especially as more adults turn to cannabis for pain management, sleep support, and overall wellness. For many people, cannabis represents a lower-risk alternative to opioids, benzodiazepines, or other medications that can carry serious side effects and dependency concerns. But like any substance used regularly, it is important to approach cannabis thoughtfully and pay attention to personal habits and changing tolerance levels over time.

The study also highlights a larger issue within cannabis science. As legalization expands and more adults incorporate cannabis into their healthcare routines, researchers and clinicians may need better tools for distinguishing between harmful compulsive use and consistent therapeutic use. Someone using cannabis daily for chronic pain management may not fit neatly into the same framework as someone whose use is disrupting their life, relationships, or responsibilities.

Ultimately, this research is less about fear and more about understanding. Cannabis is not entirely risk-free, but neither is it accurately defined by outdated stereotypes. As research continues to evolve, the most productive conversations will focus on education, responsible use, individualized care, and a clearer understanding of how cannabis affects different people in different stages of life.

References:

^{1. Yvonne M. Terry-McElrath, Megan E. Patrick, Cannabis use disorder risk among midlife adults reporting medical and nonmedical cannabis use, 2019–2024, Drug and Alcohol Dependence, Volume 284, 2026, 113178, ISSN 0376-8716, https://doi.org/10.1016/j.drugalcdep.2026.113178}