New Concerns Over High-Potency Cannabis and Mental Health
Recent studies have raised alarm about the effects of high-potency cannabis, particularly its link to mental health issues. Dr. Marc Siegel, a senior medical contributor, warns that the rising levels of THC, the main psychoactive compound in marijuana, can lead to addiction and significant mental health challenges, especially for young, developing brains. He emphasizes that claims suggesting cannabis can alleviate anxiety and depression are often misleading, contributing to more emergency room visits.
Marijuana Use Surpasses Cigarette Smoking
According to the 2025 National Survey on Drug Use and Health by the Substance Abuse and Mental Health Services Administration (SAMHSA), marijuana has become the most commonly used daily substance in the United States. The survey found that about 21.4 million Americans use marijuana daily or nearly every day, surpassing the 19.9 million cigarette smokers and 17.2 million individuals who consume alcohol.
The survey defines daily use as consuming marijuana on 300 or more days a year. The number of daily users increased from 17.7 million in 2022 to 21.4 million in 2025, marking a 21% rise. Most of this increase appears to involve adults, particularly those aged 26 and older, rather than younger users.
Alcohol Still Most Widespread Substance
While marijuana usage is on the rise, alcohol remains the most broadly consumed substance, with about 129 million people drinking alcohol in the past month compared to 43.8 million who used marijuana. Use of cigarettes and other tobacco products has been declining, dropping from 20.1% of Americans in 2021 to 15.9% in 2025, while general marijuana use increased from 13.2% to 15.1% during the same period.
Stress and Substance Use in the Workplace
A report by Modern Health found a troubling trend where many employees turn to substances, especially THC products, to cope with work-related stress. A survey of 1,000 full-time workers indicated that 63% engage in some form of self-medication after work hours, and 52% do so during the workday. Notably, Gen Z workers reported higher usage of THC compared to alcohol, with 59% using marijuana after work.
Rising THC Levels and Health Risks
Dr. Siegel describes the rising levels of THC in cannabis products as a “very disturbing trend.” He notes that the focus has often been on the perceived benefits of marijuana for pain and anxiety, while less attention is paid to the potential for increased anxiety and other mental health issues. Furthermore, higher THC content may impact cognitive function, judgment, and memory.
Siegel warns that the growing acceptance of marijuana correlates with an uptick in fatal motor vehicle accidents linked to THC impairment, highlighting the need for greater awareness of the risks associated with marijuana.
In conclusion, as marijuana use rises, particularly among adults, the potential health risks, especially regarding high-potency products, should not be overlooked. Awareness and education about these dangers are crucial in addressing this growing concern.
