Health
Marijuana Dependence Linked to Higher Risk of Death
Hospital and emergency room patients diagnosed with cannabis use disorder — defined as an inability to stop using cannabis even when the drug is causing harm — died at almost three times the rate of individuals without the disorder over the next five years, according to a study published on Thursday, the largest on the subject.
Patients with cannabis use disorder were 10 times as likely to die by suicide as those in the general population. They were also more likely to die from trauma, drug poisonings and lung cancer. Those numbers suggest that cannabis use disorder is about half as dangerous as opioid addiction and slightly less dangerous than alcohol use disorder, the researchers said.
A second report, published on Tuesday, found that more cases of schizophrenia and psychosis in Canada have been linked to cannabis use disorder since the drug was legalized.
“Many people think, ‘Oh, cannabis is not harmful — it’s organic, it’s natural; how great,’” said Dr. Laura Bierut, a psychiatrist at Washington University School of Medicine in St. Louis who is an author of an editorial accompanying the study of death risk. But the marijuana sold today is far more potent, and more harmful, than what baby boomers smoked in the 1960s and 1970s, she said.
“It is a public health threat just like alcohol,” Dr. Bierut said.
Recent research suggests that three in 10 cannabis users will develop cannabis use disorder, defined as being unable to stop using cannabis even though it’s causing serious health and social problems. As with alcohol, many people use marijuana recreationally without adverse effects or addiction.
The researchers took advantage of records in Ontario that capture millions of residents’ encounters with the government health system, which covers 97 percent of the population there.
From the records, the scientists in Thursday’s study identified 106,994 people who were diagnosed with cannabis use disorder during an emergency department visit or hospitalization between 2006 and 2021.
The researchers linked the records with vital statistics records and found that 3.5 percent of them died within five years of treatment for the disorder. In a matched comparison group of people of the same age and sex, the death rate was 0.6 percent.
The authors then made adjustments to account for other risk factors that may have contributed to their deaths, including mental health disorders, other substance use and conditions like heart disease and cancer.
Even when taking deaths by those other causes out of the equation, the researchers concluded that patients with cannabis use disorder were at a 2.8-fold increased risk of death compared with the general population. The risk was greatest in young adults ages 25 to 44.
Dr. Daniel Myran, an assistant professor of family medicine at University of Ottawa and the study’s first author, noted that these are most likely underestimates of cannabis’s toll.
“Our estimate is that for every person treated for C.U.D. there are another three who didn’t seek care,” he said. “So this is not just C.U.D., but bad enough that they sought care for it.”
He also noted that the study could not conclusively determine whether the cannabis itself increased death risk, or whether it was other lifestyle or health factors that happen to be more common among heavy cannabis users.
“Either way, this group is really, really high risk, and could benefit from intervention and monitoring and prevention,” he said.
On Tuesday, the same research group published a study looking at whether Canada’s recent legalization of marijuana affected rates of psychosis and schizophrenia.
Cannabis use has been associated with the development of schizophrenia, a serious mental illness, as well as transient psychotic episodes characterized by a loss of contact with reality. Some research has found no association between cannabis legalization and an increase in these disorders, but many studies are too small to detect changes in the prevalence of psychotic disorders, which are rare.
The new study analyzed cannabis-linked psychosis in Canada during three periods: before the country made cannabis legal (2006 to 2015), amid widening use of medical and nonmedical cannabis (2015-2018) and after the recreational use of cannabis was made legal (2018 to 2022).
The rates of schizophrenia were stable over time. But the percentage of cases attributable to cannabis use disorder increased to 10.3 percent during the legalization period, up from 3.7 percent before legalization, the authors found. The rate of psychosis (without a diagnosis of schizophrenia) nearly doubled after legalization.
Young adults ages 19 to 24 were most vulnerable, said Jodi Gilman, an associate professor of psychiatry at Harvard Medical School who wrote a commentary about the study.
“This is a period of the life span when the brain is still developing and still vulnerable to the effects of cannabis,” Dr. Gilman said. Psychosis and schizophrenia are also known to develop in young adulthood, she added, “so you have a double hit.”
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As winter weather moves in, cozy essentials like scarves, plush throws and heated bedding become everyday comforts.
But dermatologists caution that these cold-weather favorites can secretly undermine skin health — trapping sweat and bacteria, causing irritation and exposing the skin to excess heat.
Choosing the right materials for wellness — and using them safely — can make a big difference.
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Here are five winter must-haves and gift ideas, with expert tips on how to keep skin healthy and happy while staying warm this season.
Soft scarf, $19.99, Amazon.com
Scarves made of natural fiber, like this one that is 100% cotton, may help if you’re prone to irritation. (Amazon)
A soft scarf is a staple for cold days and an easy way to elevate a winter outfit.
Yet, if breakouts are appearing along the neck, jawline or chest, that favorite accessory may be part of the problem.
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“You should wash your scarf as often as your clothes to prevent breakouts,” Annabelle Taurua, a beauty expert at Fresha, a beauty and wellness booking platform headquartered in London, told Fox News Digital.
Cotton is a better choice than polyester, she also noted, as it’s more breathable and allows sweat to evaporate.
Fluffy blankets, $28.97, Potterybarn.com
Fluffy blankets make for perfect cozy days at home, but their soft fibers can trap sweat, oils and dead skin — which can clog pores and encourage bacteria growth. (Pottery Barn)
Fluffy blankets make for perfect cozy days at home, but their soft fibers can trap sweat, oils and dead skin, which can clog pores and encourage bacteria growth.
Rough textures or infrequent washing can also irritate sensitive skin and worsen breakouts.
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“Regularly wash your blankets, especially those made from synthetic or fluffy materials, to remove built-up oils and dirt,” Taurua advised.
She recommended breathable materials like cotton or linen, as well as hypoallergenic options for anyone prone to irritation.
Good set of sheets, $49.99, Amazon.com
Much like scarves, natural fibers are the way to go for your linens to avoid irritation. (iStock)
Cold weather makes lingering in bed especially tempting, but lying on unwashed bedding can worsen acne.
Pillowcases and sheets quickly collect oil, bacteria and dead skin cells, which transfer directly onto the face.
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“Washing bedding frequently is important,” Taurua said. “You should aim to change and wash your pillowcases every two to three days and your sheets at least once a week.”
Heated blanket, $33.99, Walmart.com
Heated blankets are a great way to stay warm during the winter. (Walmart)
When using a heated blanket, start with the lowest heat setting and limit use, said Taurua.
“Once you’re warm, switch to a regular blanket,” she advised.
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She also said it’s best to avoid direct contact for long periods to reduce irritation.
Hot water bottle, $12.99, Amazon.com
A traditional winter staple, hot water bottles offer quick comfort — but they come with risks similar to heated blankets, including burns, scalding and long-term heat-related skin damage.
Hot water bottles should never be filled with boiling water, experts advise. (Amazon)
“Never fill a hot water bottle with boiling water,” Taurua said.
“Only use hot, not boiling, water, and fill it to a maximum of two-thirds.”
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She recommended wrapping the bottle in a towel or cover to avoid direct skin contact and limiting use to around 20 minutes.
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Comedian Amy Schumer, 44, has recently come clean about her struggle with Cushing’s syndrome, leading to a dramatic weight loss.
Schumer’s transformation has sparked conversation online, to which she responded in a now-deleted Instagram post that shut down speculation about cosmetic enhancements.
“I didn’t lose 30lbs — I lost 50,” she emphasized on social media, adding that she does not get Botox or filler.
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Schumer doubled down that her weight loss was not about her appearance, but about staying alive.
“Not to look hot, which does feel fun and temporary,” she said. “I did it to survive. I had a disease that makes your face extremely puffy that can kill you, but the internet caught it and that disease has cleared.”
Amy Schumer attends Variety’s 2024 Power of Women: New York event on May 2, 2024, in New York City on the left. On the right, Schumer later poses for a photo posted to Instagram after her weight loss. (Marleen Moise/WireImage; Amy Schumer/Instagram)
“Sorry for whatever feeling it’s giving you that I lost that weight,” she added. “I’ve had plastic surgery over the years and I use [Mounjaro]. Sorry to anyone they let down. I’m pain free. I can [play] tag with my son.”
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The actress also addressed her shifting hormones, saying that she’s “happy to share more if anyone has any questions about how I’m looking or feeling or where I am in my perimenopause process.”
“I didn’t lose 30lbs — I lost 50,” Schumer emphasized on social media, adding that she does not get Botox or filler. (Amy Schumer/Instagram)
What is Cushing’s syndrome?
Schumer previously revealed that she had been diagnosed with Cushing’s syndrome, a hormonal disorder that can cause extreme swelling, fatigue and potentially fatal complications.
Dr. Peter Balazs, a hormone and weight loss specialist in New Jersey, provided more details on the condition in an interview with Fox News Digital.
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“Cushing’s syndrome is caused by prolonged, high exposure to cortisol, which is your body’s main stress hormone,” he said. “Usually, the excess cortisol is a result of prolonged steroid use. We see this many times with patients who have some autoimmune disorder.”
Balazs said the “key” to Cushing’s syndrome is not just weight gain, but a “specific redistribution” of fat caused by too much cortisol.
Amy Schumer is photographed during a guest interview on The Tonight Show Starring Jimmy Fallon on Feb. 13, 2024 (left), and later seen walking through midtown New York City on Oct. 28, 2025 (right). (Todd Owyoung/NBC via Getty Images; Raymond Hall/GC Images/Getty Images)
Fat may be driven to the abdomen, chest, upper back (referred to as a “buffalo hump”) or face, sometimes considered “moon face,” the doctor said.
Cortisol also breaks down protein, which leads to a thinning in the arms and legs. “Weight gain can be tough, involuntary and hard to manage,” Balazs added.
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Cortisol stimulates “hunger centers” in the brain, raises blood sugar and promotes fat storage, especially deep belly fat, according to the doctor.
Cushing’s syndrome can also cause high blood pressure, bone loss and sometimes type 2 diabetes, per Mayo Clinic.
In addition to weight gain in certain areas, other symptoms may include pink or purple stretch marks on the stomach, hips, thighs, breasts and underarms, as well as acne, slow wound healing, and thin, frail skin that bruises easily.
With Cushing’s syndrome, fat may accumulate in the abdomen, chest, face or upper back (referred to as a “buffalo hump”). (iStock)
Women with Cushing’s syndrome often experience thick, dark hair on the face and body, as well as irregular periods. Symptoms among men can include a lower sex drive, reduced fertility and erectile dysfunction.
Mayo Clinic listed other potential symptoms, including extreme fatigue, muscle weakness, depression, anxiety, irritability, mood swings, trouble with concentration and memory, headache, sleeplessness, skin darkening and stunted growth in children.
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Those with symptoms should contact their doctor immediately, especially if they are taking steroids to treat health issues like asthma, arthritis or inflammatory bowel disease, as these medications can exacerbate the condition.
The Mayo Clinic has reported that the “sooner treatment starts, the better the chances for recovery.”
“I’ve had plastic surgery over the years and I use [Mounjaro],” Schumer stated in a social media post. (George Frey/Bloomberg)
For patients like Schumer, weight loss is typically not the main goal, Balazs noted, but it is a “critical sign” of successful treatment.
“The primary goal is to normalize your high cortisol levels,” he said. “I believe Amy Schumer got treated first for her underlying problem. Once the cortisol is normalized, which is the most important step, there’s a role to use adjunct medications to decrease weight.”
TEST YOURSELF WITH OUR LATEST LIFESTYLE QUIZ
Among GLP-1s, Mounjaro is an “excellent choice to decrease deep belly fat and increase insulin sensitivity of cells,” Balazs added.
Fox News Digital’s Stephanie Giang-Paunon contributed to this report.
Fox News Digital reached out to Schumer’s rep requesting comment.
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