10 Cannabis Facts and Stats You Should Be Aware of in 2025
Introduction
Medical cannabis has undergone a dramatic transformation in public perception, legal status, and cultural relevance over the last few decades. In many parts of the United States and the world, it has transitioned from being an underground substance to a legally accessible product, both for medical and recreational use. However, this shift has also brought with it a need for greater awareness of the potential risks, especially as more individuals—adults and adolescents alike—begin experimenting with or regularly using cannabis.
Whether you're a policymaker, parent, medical professional, or simply someone interested in public health trends, staying informed about the realities of cannabis is more crucial than ever.
Here are seven important cannabis facts and statistics to keep in mind as we move through 2025.
1. Cannabis is the Most Commonly Used Federally Illegal Drug in the United States (Source)
In 2021, an estimated 52.5 million people—nearly 19% of the U.S. population—reported using cannabis at least once. This makes it the most widely used federally illegal drug in the country.
Despite the growing number of states that have legalized cannabis either medically or recreationally, it remains a Schedule I substance under federal law. This classification, which places it alongside drugs like heroin and LSD, has significant implications for research, banking in the cannabis industry, and criminal justice enforcement.
The prevalence of cannabis use reflects shifting societal norms, increased access through legalization, and evolving public opinion. Yet, the discrepancy between federal and state law creates a confusing landscape, particularly for businesses, travelers, and medical patients who rely on cannabis treatment in legal states but risk legal consequences elsewhere.
2. Roughly 3 in 10 Cannabis Users May Develop Cannabis Use Disorder (Source)
One of the more concerning aspects of widespread cannabis use is the potential for addiction—often overlooked due to the drug’s comparatively milder withdrawal symptoms and the perception that it is non-addictive. However, recent research suggests that approximately 30% of those who use cannabis may develop cannabis use disorder (CUD).
Cannabis use disorder is characterized by a pattern of continued use despite significant impairment in personal, social, or occupational functioning. Symptoms include cravings, increased tolerance, unsuccessful attempts to quit, and withdrawal symptoms such as irritability, sleep difficulties, and mood swings.
Importantly, the risk of developing CUD increases with frequency of use and potency of the product, particularly with the proliferation of high-THC concentrates in today's cannabis market. This stat underscores the importance of moderation and awareness, especially for new users who may underestimate the drug’s addictive potential.
3. The Risk of Cannabis Use Disorder Is Higher for Those Who Begin Before Age 18 (Source)
Age of first use plays a critical role in determining the likelihood of developing a dependency on cannabis. Studies have found that individuals who begin using cannabis before the age of 18 are significantly more likely to develop cannabis use disorder than those who start later in life.
This is due in large part to the developing adolescent brain, which is more sensitive to the psychoactive effects of THC (tetrahydrocannabinol), the main intoxicating compound in cannabis. Early cannabis exposure can interfere with brain development in areas related to self-control, decision-making, and emotional regulation—functions that are still maturing well into a person’s mid-20s.
Because of this, prevention efforts are often focused on delaying the onset of cannabis use. Educational campaigns and age restrictions are crucial components in mitigating this increased risk among youth.
4. Cannabis Use Directly Affects Brain Functions Like Memory, Learning, and Coordination (Source)
Cannabis affects the endocannabinoid system, which plays a role in regulating numerous physiological processes including mood, appetite, pain sensation, and cognition. THC binds to cannabinoid receptors in the brain, particularly in areas responsible for memory, learning, attention, decision-making, coordination, emotion, and reaction time.
Short-term effects of cannabis use often include impaired memory, difficulty concentrating, slower reaction times, and impaired motor coordination. These effects can have serious consequences, particularly when individuals drive under the influence or perform other tasks requiring alertness and precision.
Long-term heavy use—especially beginning in adolescence—has been associated with structural changes in brain regions critical to these cognitive functions. Some studies suggest that heavy cannabis users may experience persistent cognitive impairments even after discontinuing use.
5. Children and Teens Are Especially Susceptible to Cannabis’s Negative Effects (Source)
Children, teens, and young adults are at heightened risk when exposed to cannabis, particularly due to the ongoing development of the brain’s structure and function. The brain continues to mature well into a person’s mid-20s, and exposure to THC during this crucial period can interfere with the natural development process.
Adolescents who use cannabis regularly are more likely to experience:
Cognitive deficits, including reduced IQ scores
Poor academic performance
Higher rates of mental health issues such as anxiety and depression
Increased likelihood of developing substance use disorders later in life
Additionally, accidental ingestion of cannabis edibles by young children has become a growing concern. Colorful packaging and high THC concentrations make these products appealing but dangerous, often leading to emergency room visits and, in rare cases, hospitalization.
Preventive measures such as child-resistant packaging, education, and public awareness campaigns are essential to reduce these risks and protect vulnerable populations.
6. Long-Term Cannabis Use Has Been Linked to an Increased Risk of Psychosis and Schizophrenia (Source)
One of the most alarming findings in cannabis research is the link between long-term or heavy use and serious mental health conditions, particularly psychosis and schizophrenia.
While not everyone who uses cannabis will experience these disorders, studies show that frequent use—especially of high-THC strains—can increase the likelihood of developing psychotic symptoms, including paranoia, delusions, and hallucinations. The risk appears to be significantly higher in individuals with a personal or family history of mental illness.
For example, research has shown that people who use cannabis daily, particularly high-potency products, are five times more likely to develop a psychotic disorder than non-users. These findings highlight the importance of considering mental health vulnerabilities when assessing the risks of cannabis use.
Public health officials are increasingly calling for THC content limits, improved labeling, and mental health screening in cannabis access programs to reduce these risks.
7. Cannabis Use During Pregnancy May Increase Risks for Pregnancy Complications (Source)
Cannabis is often mistakenly perceived as a natural or harmless remedy for symptoms such as morning sickness, stress, or sleep issues during pregnancy. However, growing evidence suggests that using cannabis while pregnant or breastfeeding can pose significant risks to both the mother and the developing fetus.
THC can cross the placenta and has been detected in breast milk. Exposure during gestation may affect fetal brain development, leading to potential consequences such as:
Low birth weight
Preterm birth
Developmental delays
Behavioral issues in childhood
The American College of Obstetricians and Gynecologists (ACOG) and other leading medical organizations advise that pregnant and breastfeeding women should avoid cannabis use entirely. It's also crucial for healthcare providers to screen for cannabis use during prenatal visits and provide counseling and support for cessation if needed.
8. Legal Cannabis Sales in the U.S. Surpassed $30 Billion in 2024 (Source)
The cannabis industry has experienced exponential growth over the past decade. In 2024 alone, legal cannabis sales in the United States surpassed $30 billion, driven largely by recreational markets in states like California, Michigan, Illinois, and newly legal markets in the Midwest and Northeast.
This surge in economic activity has made cannabis one of the fastest-growing sectors in the U.S. economy. It's created hundreds of thousands of jobs, generated billions in tax revenue, and spurred innovation in product development—from beverages and edibles to wellness-focused topicals.
However, the economic boom has also raised challenges, such as ensuring equitable access to business opportunities, preventing corporate monopolies, and addressing the legacy of criminalization that has disproportionately affected communities of color.
As legalization expands, striking a balance between profit and public health remains a key issue.
9. Driving Under the Influence of Cannabis Remains a Public Safety Concern (Source)
With increased cannabis use comes a corresponding rise in cannabis-impaired driving, which has become a major public safety concern. Unlike alcohol, there is no standardized roadside test for THC impairment, making enforcement more difficult.
Studies indicate that cannabis can impair motor coordination, reaction time, and judgment, all of which are critical for safe driving. According to the National Highway Traffic Safety Administration (NHTSA), drivers who test positive for THC are more likely to be involved in motor vehicle crashes, especially when combined with alcohol or other drugs.
As of 2025, many states have implemented zero-tolerance laws or set per se THC limits, though the scientific validity of these limits remains controversial due to the complexity of measuring impairment.
Public education campaigns are increasingly targeting cannabis users with the message that “high is not safe to drive”, encouraging designated drivers and safer alternatives.
10. Cannabis Use Is Increasing Among Older Adults (Source)
One of the most surprising demographic trends in recent years is the significant increase in cannabis use among adults aged 65 and older. Between 2015 and 2023, the rate of cannabis use in this age group more than tripled, and the trend has continued into 2025.
Older adults are turning to cannabis for a range of reasons, including pain management, sleep issues, anxiety, and chronic illness—often as an alternative to prescription medications like opioids or benzodiazepines. Some are also rediscovering cannabis after having used it in their youth.
However, cannabis use in older adults raises unique concerns, such as:
Drug interactions with other medications
Increased fall risk due to dizziness or coordination impairment
Potential for confusion or memory issues
Medical professionals now recommend that older patients consult their healthcare provider before starting cannabis, especially given the variability in potency and dosing of modern products.
Final Thoughts
As cannabis continues to evolve from a stigmatized substance to a mainstream product, understanding its effects—both beneficial and harmful—is more important than ever. The statistics and facts highlighted in this article offer a well-rounded view of the potential health considerations, especially for vulnerable populations such as youth, pregnant women, and individuals with mental health conditions.
Legalization and normalization do not eliminate the need for caution, responsible use, and education. A thoughtful approach that balances personal freedom with public health awareness is crucial as we navigate the growing role of cannabis in society.
For Virginia residents interested in exploring the therapeutic benefits of medical marijuana, CannabisMD Telemed is the most trusted and convenient option. Our streamlined online platform connects patients with licensed medical professionals, making it easy to obtain a Virginia medical marijuana card from the comfort of your home. With compassionate care, expert guidance, and a commitment to compliance, CannabisMD Telemed ensures you start your cannabis journey safely and legally.
FAQs
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Cannabis is the most commonly used federally illegal drug in the United States, with over 52 million users annually. Around 3 in 10 people who use cannabis may develop cannabis use disorder. It also directly affects brain functions like memory, coordination, and decision-making.
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Cannabis is most known for its psychoactive effects, primarily caused by THC, which produces a feeling of euphoria or being "high." It's also widely recognized for its medical use in managing chronic pain, nausea, and certain neurological conditions. In recent years, it has gained mainstream attention as both a recreational and therapeutic substance.
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The United States has one of the highest cannabis use rates in the world, with nearly 19% of Americans reporting past-year use. Other countries with high usage include Canada, which has legalized cannabis nationwide, and New Zealand. Usage rates often correlate with changing legal policies and cultural acceptance.
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Cannabis potency has increased significantly over the past few decades, with modern strains often containing over 15–25% THC, compared to under 4% in the 1990s. Some concentrated products, like dabs or oils, can exceed 80% THC. This rise in strength has led to more pronounced effects and a higher risk of adverse reactions or dependency.
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Yes, cannabis can be addictive for some users, especially with frequent or long-term use. Around 30% of users may develop cannabis use disorder, characterized by cravings, tolerance, and withdrawal symptoms. The risk is higher for individuals who start using before age 18.
