Health
What is ‘rhabdo,’ the life-threatening muscle injury that affected 12 college lacrosse players?
After a college lacrosse team reported that several players experienced a severe muscle injury, experts are speaking about the condition.
Tufts University in Massachusetts has launched an investigation after 12 members of the men’s lacrosse team were diagnosed with rhabdomyolysis — a rare, life-threatening muscle injury — following a 45-minute “voluntary, supervised” workout on Sept. 16.
A total of 50 athletes participated in the workout, which was led by a Tufts graduate who had recently completed Navy SEAL training, according to a statement sent to Fox News Digital on Monday.
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Nine were hospitalized for the condition.
As of Monday, three of the student athletes remained in the hospital and are “responding to treatment,” Tufts Spokesperson Patrick Collins said in the statement.
What is rhabdomyolysis?
Rhabdomyolysis — often referred to as “rhabdo” — is a rare injury that causes the muscles to break down and disintegrate, according to Cleveland Clinic.
After a college lacrosse team reported the same severe muscle injury across multiple players, experts are speaking about the condition. (iStock)
It usually happens after a prolonged period of “excessive exercise,” trauma (injury), certain medications or an underlying health condition, the clinic noted.
The condition can be life-threatening because the muscle fibers can make their way into the bloodstream and kidneys, potentially causing kidney damage.
“Anyone leading a group or individual into strenuous training should be aware of the signs of dehydration and overexertion.”
Typical symptoms include muscle weakness, stiffness or pain, as well as changes in urine color, per Cleveland Clinic.
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“Rhabdomyolysis can lead to severe organ failure, cardiac arrhythmia or compartment syndrome, which could be fatal,” warned certified personal trainer Regis Pagett, the founder and owner of R Personal Fitness in New York City.
Goalie Conner Garzone #19 of the Tufts University Jumbos gets a save during the Division III Men’s Lacrosse Championship held at Lincoln Financial Field on May 26, 2024, in Philadelphia, Pennsylvania. (Getty Images)
IV therapy can be used to flush out toxins from the bloodstream, the expert said, but physical therapy and strength training would be needed to regain the lost muscle.
“It could take anywhere from a few weeks to months depending on the severity of symptoms,” he added.
Why were the athletes affected?
In the statement provided to Fox News Digital, Collins (the Tufts spokesperson) stated that the university is “addressing this matter with the utmost seriousness.”
“The university continues to closely monitor the condition of the team, and some individual team members have been medically cleared to resume training,” Collins said.
“Having qualified coaches oversee intense training is necessary.”
“However, all team practices continue to be postponed until university medical personnel authorize their resumption.”
The university will appoint an independent investigator to “determine exactly what happened before, during and after the workout; assess the university’s response; and review its procedures and policies to determine what changes it should make to prevent this from happening again,” Collins added.
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“Meanwhile, we are closely monitoring the condition of the rest of the team and have postponed all team practice activities until each team member has been evaluated and medically cleared to return to participation.”
The university is unable to provide additional details until the investigation is complete, the statement said.
IV therapy can be used to flush out toxins from the bloodstream, but physical therapy and strength training would be needed to regain the muscle lost, an expert said. (iStock)
As the condition is not contagious, the fact that several of the Tufts lacrosse players were diagnosed “absolutely” suggests that the workout was too strenuous, according to Pagett.
“This is rare in athletes — overall, rhabdomyolysis is something more commonly seen in victims of physical trauma,” he told Fox News Digital.
It is also a “high possibility” that the affected team members were not properly hydrated, Pagett noted.
“Anyone leading a group or individual into strenuous training should be aware of the signs of dehydration and overexertion,” he said.
“Sometimes a competitive athlete will push themselves to finish through just about anything, but you have to know when to save the athletes from themselves.”
Tufts University Jumbos celebrate scoring during the Division III Men’s Lacrosse Championship held at Lincoln Financial Field on May 26, 2024, in Philadelphia, Pennsylvania. (Getty Images)
To prevent rhabdomyolysis, Pagett emphasized the importance of a “sound workout plan,” adequate hydration and proper post-workout care (nutrition, rest and supplementation).
“Having qualified coaches oversee intense training is necessary,” he added.
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“Leveraging people who have completed a training regimen, such as what happened in this case, doesn’t necessarily give them the knowledge needed to properly train others.”
Anyone experiencing symptoms of rhabdomyolysis should seek medical attention immediately.
Fox News’ Paulina Dedaj contributed reporting.
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For women over 60, muscle strength plays a critical role in longevity, a new study confirms.
Researchers at the University at Buffalo, New York, followed more than 5,000 women between the ages of 63 and 99, finding that those with greater muscle strength had a significantly lower risk of death over an eight-year period.
The findings were published in JAMA Network Open.
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Muscle function was measured using grip strength and how quickly participants could complete five unassisted sit-to-stand chair raises.
These are two tests commonly used in clinical settings to evaluate muscle function in older adults, the researchers noted.
A recent study shows that stronger muscle strength in women over 60 is linked to a lower risk of death over eight years. (iStock)
“In a community cohort of ambulatory older women, muscular strength was associated with significantly lower mortality rates, even when we accounted for usual physical activity and sedentary time measured using a wearable monitor, gait speed and blood C-reactive protein levels,” study lead author Michael LaMonte, research professor of epidemiology and environmental health at the University at Buffalo, told Fox News Digital.
“Movement is the key — just move more and sit less.”
Many earlier studies did not include those objective measurements, making it difficult to determine whether muscle strength itself was linked to longevity, according to LaMonte. “Our study was able to better isolate the association between strength and death in later life,” he added.
Even for women who don’t get the recommended amount of aerobic physical activity, which is at least 150 minutes per week, muscle strength remained important for longevity, the researchers found.
Women with greater muscle strength were more likely to live longer, even if they did not meet the recommended amount of aerobic exercise. (iStock)
“The findings of lower mortality in those who had higher strength but were not meeting current national guidelines on aerobic activity were somewhat intriguing,” LaMonte said.
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Federal guidelines recommend strengthening activities one to two days per week, targeting major muscle groups.
Resistance training does not have to require a gym membership, LaMonte noted. These exercises can be performed using free weights, resistance bands, bodyweight movements or even household items, such as soup cans.
Experts recommend working major muscle groups one or two days a week using weights, bands or bodyweight exercises. (iStock)
“Movement is the key — just move more and sit less,” he said. “When we can no longer get out of the chair and move around, we are in trouble.”
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LaMonte acknowledged several limitations of the study. The researchers assessed muscle strength in older age but did not explore how earlier levels in adulthood might influence long-term health outcomes.
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“We were not able to understand how strength and mortality relate in younger ages,” he said, noting that future research should explore whether building strength earlier could have an even greater impact on longevity.
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Compounds found in cannabis could provide a new roadmap for treating the world’s most common chronic liver disorder, according to a study released by the Hebrew University of Jerusalem.
The research, published in the British Journal of Pharmacology, found that cannabidiol (CBD) and cannabigerol (CBG) significantly reduced liver fat and improved metabolic health in experimental models.
CBD is the more widely studied non-intoxicating cannabinoid, while CBG is a less common “precursor” cannabinoid from which CBD is formed.
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Unlike THC, the primary psychoactive component in cannabis, these compounds do not produce a “high,” making them viable candidates for long-term medical treatment, the study suggests.
Metabolic dysfunction-associated steatotic liver disease (MASLD) currently affects approximately one-third of the global adult population, according to health data.
Metabolic dysfunction-associated steatotic liver disease (MASLD) currently affects approximately one-third of the global adult population. (iStock)
The condition, which is closely linked to obesity and insulin resistance, has few approved pharmaceutical treatments, the researchers said, leaving patients to rely largely on lifestyle changes that can be difficult to maintain.
“Our findings identify a new mechanism by which CBD and CBG enhance hepatic energy and lysosomal function,” said lead study author Joseph Tam, director of the Multidisciplinary Center for Cannabinoid Research at Hebrew University, in a press release.
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The study highlights a process called “metabolic remodeling,” in which the cannabis compounds created a “backup battery” for the liver by increasing levels of phosphocreatine, a high-energy molecule stored in muscle cells.
This energy reserve helps the organ function under the stress of a high-fat diet, which was an unexpected discovery, the team noted.
Researchers focused on CBD and CBG, two non-psychoactive compounds that offer therapeutic benefits without the “high” associated with THC. (iStock)
The researchers also found that CBD and CBG restored the activity of “cellular cleaning crews” known as cathepsins, enzymes that work within the cell’s recycling centers to break down harmful fats and waste.
With this process, the liver was better able to clear out dangerous lipids, including triglycerides and ceramides, which are known to trigger inflammation, the study showed.
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While both compounds were effective, CBG showed more robust results in certain areas, such as reducing total body fat mass, lowering “bad” LDL cholesterol and improving insulin sensitivity.
Researchers say this study opens a new path for using plant-based compounds to treat metabolic diseases by focusing on how cells manage energy and waste.
The discovery of a phosphocreatine “backup battery” in the liver marks a significant shift in how scientists understand the organ’s ability to survive high-fat diets. (iStock)
Limitations and caveats
Despite the promising results, the research team cautioned that the study was conducted in a controlled experimental environment. Further clinical trials are necessary to determine the proper application for human patients.
Other recent studies have pointed to potential issues with using cannabis as a medical tool.
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A major analysis published in JAMA examined more than 2,500 scientific papers from the last 15 years, including other reviews, clinical trials and guidelines focused on medical marijuana.
The 2025 review highlighted significant gaps between public perception and scientific evidence regarding cannabis’ effectiveness for most medical conditions.
Other recent studies have pointed to issues with the efficacy of cannabis as a medical tool. (iStock)
The researchers concluded that there are very few conditions for which cannabinoid therapies have clear, well-established benefits backed by high-quality clinical data.
“Whenever a substance is widely used, there is likely to be a very wide set of outcomes,” Alex Dimitriu, MD, who is double board-certified in psychiatry and sleep medicine and founder of Menlo Park Psychiatry & Sleep Medicine, previously told Fox News Digital. “This study points to the reality that this widely used substance is not a panacea.”
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The strongest evidence supports FDA-approved cannabinoid medications for treating specific conditions, including HIV/AIDS-related appetite loss, chemotherapy-induced nausea and vomiting, and certain severe pediatric seizure disorders, according to the review.
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Anyone interested in using marijuana for medical purposes should speak to a healthcare provider to discuss potential risks and benefits.
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While cannabis has recently come under fire for potential negative health risks, a recent study suggests that its use could increase brain volume and cognitive fitness.
Researchers at the University of Colorado Anschutz Medical Campus analyzed cannabis usage, brain scans and cognitive test results for more than 26,000 adults between the ages of 40 and 77, using data from the UK biobank.
The study found that cannabis users — particularly those who reported moderate lifetime usage — showed larger volumes in several brain regions.
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“Compared to individuals with no history of cannabis use, those who reported using cannabis showed larger volumes in several brain regions characterized by a high density of cannabinoid (CB1) receptors — regions involved in processes such as memory, information processing and emotion regulation,” lead study author Anika Guha, Ph.D., a researcher at the University of Colorado Anschutz Medical Campus, told Fox News Digital.
A recent study suggests that cannabis use could increase brain volume and cognitive fitness. (iStock)
The cannabis users also scored better on cognitive tests that measured learning, processing speed and executive function.
This outcome differs from many previous studies, which have focused on short-term cognitive impairment during or shortly after cannabis use, the researcher pointed out.
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“These findings suggest that the relationship between cannabis and the brain may differ across the lifespan, and that moderate use in mid-to-later adulthood may be associated with positive brain health outcomes,” Guha said.
Not all areas of the brain showed positive effects among cannabis users. The posterior cingulate, which is involved in self-reflection and memory, had lower volume with higher marijuana use.
“The takeaway is not that people should start using more cannabis based on these findings alone.”
As cannabis has been rising in popularity among all ages, this type of study is important for understanding its long-term effects and the pros and cons of use, according to Matt Glowiak, Ph.D., chief addiction specialist with Recovered, an organization that provides information and resources for mental health and addiction treatment.
The drug’s effects likely depend on factors such as age, dose, frequency, product composition and individual vulnerability. (AP Photo/Martin Meissner, File)
“Given the connection between cannabis use and larger brain volume, it is believed that it may help [older] individuals retain cognitive function that might otherwise naturally decline,” Chicago-based Glowiak, who was not involved in the study, told Fox News Digital.
“This is a huge benefit, but one we need to explore a bit further, ahead of encouraging those who would otherwise not consider integrating cannabis into their healthcare regimen.”
Limitations and caveats
As the study was observational in nature, it could not prove that cannabis use improves brain health — instead, it only showed an association, according to Dr. Marc Siegel, Fox News senior medical analyst, who was not involved in the study.
“The preponderance of previous evidence does not line up with improved cognitive function from chronic cannabis use,” Siegel told Fox News Digital. “This study is an outlier, and though it cannot be ignored, it is not justification for use.”
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The study also relied on the UK Biobank, which offers a “large and rich dataset,” Guha said — but it is limited to the questions that were originally posed to the participants.
“In particular, we have only a broad measure of how many times someone has used cannabis over their lifetime,” she said. “We do not have access to details about how they used cannabis, such as whether they smoked or used edibles, the type or potency of cannabis, or when in their life they used most heavily.”
Cannabis users scored better in learning, processing speed and executive function. (iStock)
“Those details likely matter a great deal for understanding how cannabis affects the aging brain.”
Given these limitations, Guha suggests that the findings should be seen as an early indicator that cannabis use may be related to brain aging, “and as a starting point for more targeted research that can tease apart these relationships.”
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“The takeaway is not that people should start using more cannabis based on these findings alone,” she emphasized. “While cannabis may have potential benefits in some contexts, a substantial body of research also documents important risks, underscoring that cannabis is neither completely beneficial nor completely harmful.”
The drug’s effects likely depend on factors such as age, dose, frequency, product composition and individual vulnerability, according to Guha.
“Given the widespread use and legalization of cannabis, it would be great to know that it is net-positive for brain health — however, this feels too good to be true, and too early to claim,” one expert said. (AP)
“As with any substance, individuals should consult with a healthcare provider before initiating use, particularly if they have a history of mental health concerns, as THC (the primary psychoactive component of cannabis) can exacerbate symptoms such as psychosis in vulnerable individuals,” she added.
Dr. Alex Dimitriu, who is double board-certified in psychiatry and sleep medicine and the founder of Menlo Park Psychiatry & Sleep Medicine, reiterated that this study is an “outlier,” as most previous research has shown “detrimental effects” from cannabis use.
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“Given the widespread use and legalization of cannabis, it would be great to know that it is net-positive for brain health — however, this feels too good to be true, and too early to claim,” he said. “I would advise proceeding with caution and moderation.”
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Dimitriu agreed that more large-scale studies and review papers are needed to get a “clearer picture.”
“What this cannabis study shows is that there may be conflicting information, which warrants more investigation.”
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