Nikhil Prasad Fact checked by:Thailand Medical News Team Mar 25, 2026 1 hour, 42 minutes ago
Medical News: A new clinical study is offering fresh hope to millions struggling with lingering brain fog after COVID-19, suggesting that a simple at-home magnetic therapy device could significantly improve memory, attention, and mood.
New wearable magnetic therapy device shows potential to improve brain function and mood in long COVID patients
Researchers from the Department of Rehabilitation and Human Performance and the Department of Medicine at the Icahn School of Medicine at Mount Sinai, along with collaborators from Fareon, Inc, conducted a randomized controlled trial exploring a novel treatment called Microtesla Magnetic Therapy (MMT). Their findings point toward a safe, non-invasive approach that may tackle one of the most frustrating symptoms of long COVID—cognitive impairment.
Understanding Long COVID Brain Fog
Long COVID affects a significant portion of people even months after infection, with symptoms ranging from fatigue to memory problems. Cognitive impairment, often described as “brain fog,” can disrupt daily life, making it difficult to concentrate, process information, or recall simple details.
Scientists believe this condition is linked to ongoing inflammation in the brain, damage to blood vessels, and dysfunction in mitochondria, the energy-producing structures within cells. These issues create a cycle of reduced energy and persistent inflammation that affects brain performance.
How Magnetic Therapy Works
MMT is a wearable device that delivers very low-level radiofrequency magnetic fields to the brain. Unlike traditional brain stimulation therapies, it does not directly stimulate nerve cells but instead targets inflammation and cellular stress.
Participants in the study used the device at home for 15-minute sessions twice a week over four weeks. The therapy was designed to be simple, with remote monitoring ensuring correct usage.
In this
Medical News report, the key innovation lies in the therapy’s ability to potentially reduce inflammation and oxidative stress in the brain—two major drivers of cognitive decline in long COVID patients.
Strong Improvements in Memory and Focus
The study involved 30 participants with moderate-to-severe cognitive symptoms linked to long COVID. They were divided into two groups: one receiving active therapy and the other a sham treatment.
By the eight-week mark, those using the active device showed statistically significant improvements in several cognitive tests. These included better working memory, improved verbal recall, and faster processing speed. For example, memory recall scores improved noticeably compared to the control group, and attention-related tasks also showed measurable gains.
Beyond the statistically significant outcomes, many other cognitive measures—including attention span, executive function, and processing speed—showed encouraging trends, suggesting broader benefits that may beco
me clearer in larger studies.
Mood and Quality of Life Also Improve
Interestingly, the therapy did not just affect cognition. Participants reported better emotional well-being and reduced fatigue. Standardized assessments showed significant improvements in emotional health scores and a meaningful reduction in tiredness.
Depression and anxiety symptoms also improved, although these changes were not always statistically significant when compared to the control group. Still, the overall pattern indicates that the therapy may support both mental clarity and emotional stability.
Safe, Easy, and Highly Practical
One of the most striking findings was the safety and usability of the treatment. Participants completed 100 percent of their therapy sessions, and no device-related adverse effects were reported.
Users found the device comfortable and easy to operate, highlighting its potential for widespread home use. This is especially important for long COVID patients who may struggle with energy levels and mobility.
What This Means Moving Forward
While the study was relatively small, its findings are highly promising. The improvements in cognition and mood, combined with the absence of side effects, suggest that MMT could become a valuable tool in managing long COVID symptoms.
However, researchers caution that larger trials are needed to confirm these results and better understand how the therapy works at a biological level.
Conclusion
This study highlights a potentially game-changing approach to treating long COVID brain fog. By targeting inflammation and cellular dysfunction rather than simply masking symptoms, Microtesla Magnetic Therapy offers a new direction in recovery. Its ease of use, safety, and early signs of effectiveness make it particularly appealing for long-term management. If future studies confirm these findings, this technology could significantly improve quality of life for millions still struggling with the cognitive aftermath of COVID-19.
The study findings were published on a preprint server and are currently being peer reviewed.
https://www.medrxiv.org/content/10.64898/2026.03.18.26348530v1
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