Introduction

When it comes to sleeping, the main character is the brain. Any alteration tends to cause a sleep disorder, generally, the treatment has been medicines. But what if I tell you that it’s possible to use magnetic therapy for sleep disorders?

For this article, we will discuss transcranial magnetic stimulation. This is a non-invasive neurophysiological process that, using rapidly changing electromagnetic fields, aims to stimulate the nervous system.¹

Transcranial magnetic stimulation is FDA-approved for treating treatment-resistant major depressive disorder. Various clinical trials have been conducted targeting different neurological and psychiatric conditions, where beneficial effects on sleep patterns have been observed. This has sparked interest in using it for sleep disorders such as hypersomnia, insomnia, or restless legs syndrome.²

Magnetic therapy 101

Easy explanation of magnetic fields

In simpler terms, magnetic fields are like invisible force fields around certain objects. They have the power to pull things closer together or push them away, and we call these forces magnetism.³ Our daily lives are surrounded by electromagnetic fields, simple examples are the magnetic stripe on credit cards, lights, and radio waves.

It is important to note that there are two primary types of magnetic modalities used for therapeutic purposes. Can we mention it? TMS, Transcranial Magnetic Stimulation. And rTMS, Repetitive Transcranial Magnetic Stimulation. Today, the major difference lies in transcranial magnetic stimulation, where the stimulus can be repetitive or single, depending on the frequency and duration of magnetic pulses.

In the case of Repetitive transcranial Magnetic Stimulation (rTMS), it involves the repetitive application of electromagnetic pulses on the scalp. For example, this is used in treatment-resistant depression.¹

How does it help with sleep?

A crucial piece of information is that the repetition of electromagnetic pulses can have lasting effects on brain plasticity and neuronal activity. This is a result of the persistent depolarization it induces, correcting deficient cell functions and aiding in healing.^1,4

Why does sleep matter?

A quick overview of common sleep Issues & importance of finding solutions

Sleep is crucial for us because it is during sleep that information is consolidated in the brain, and numerous functions of cerebral repair take place. Briefly, we could mention that sleep allows us to recharge and refresh our minds and bodies, ensuring that upon waking, one feels refreshed and alert.

It ensures that our brains perform essential functions for their proper functioning; memories are processed, and unnecessary information is discarded—these things help us think more clearly. If we don't get enough sleep, our cognitive abilities suffer.^5,6

It would be impossible to overlook the pivotal role that sleep plays in maintaining health. It helps maintain the immune system, moderates stress, and keeps an appropriate body weight. It has even been suggested that sleep can help prevent diseases such as diabetes and obesity.^5,6

Something very important to mention is the sleep cycle, which includes the REM (rapid eye movement) and non-REM phases. These repeat several times during the night and play their role in maintaining individuals' well-being. During the non-REM phase, blood pressure decreases, and the heart rate drops. In the REM phase, heart rate and blood pressure increase to the usual levels when awake, and high increases in blood pressure while sleeping have been linked to chest pain and heart attacks.^5,6

The sleep cycle should not be confused with the circadian rhythm, the biological clock that regulates sleep. It operates on a 24-hour cycle and is primarily influenced by exposure to light and hormones such as melatonin and cortisol.^5,6

Sometimes the amount of sleep a person needs is a topic of debate. Based on reality, it can vary depending on the life stage. For example, from 4 to 12 months of age, around 12 to 16 hours of sleep is recommended. For 6 to 12 years, 9-12 hours are recommended, while adults aged 18 or more are advised to get 7 hours or more. Older adults require less sleep.^5,6

When there are disruptions in normal sleep patterns, we encounter what is known as sleep disorders. The most common ones include sleep deprivation, insomnia, circadian rhythm disorders, and obstructive sleep apnea. Addressing these sleep disorders is paramount. Why does a lack of sleep or poor sleep impact an individual's entire life? It compromises aspects of cognitive, cardiovascular, nervous, and emotional capacity.^7,8

How does magnetic therapy work for sleep?

A simple breakdown of research & stories of improvement

The technique to carry out magnetic therapy involves generating a localized magnetic field that induces electrical depolarization in the current of neurons a few centimetres below the scalp. This localized effect will result in the stimulation of neuronal plasticity, influencing the excitability of the cortex, and triggering compensatory processes.^9,10

Based on a review that includes 27 rTMS studies and 16 TES studies, we can say that there is not a significant difference between the results of participants in transcranial electric stimulation and repetitive transcranial magnetic stimulation when it comes to improving the objective measurements of sleep. Regarding sleep onset latency, sleep efficiency, total sleeping time, and number of times the subject wakes up rTMS showed superior results. However, both methodologies were superior in improving sleep quality.⁴

Tackling specific sleep problems

With what we currently know, it would be interesting to explore some sleep disorders, why they occur, and how magnetic therapy can be beneficial.

Insomnia unpacked

Take insomnia, for instance, one of the most common disorders characterized by difficulty falling asleep, staying asleep, or achieving quality sleep. The percentage of the affected population tends to vary depending on the study consulted, ranging from 10% to 30%, or 35%.

What causes It?

It has been linked to psychiatric conditions; in a study that involved about 8,000 individuals, it was seen that 40% of those people with insomnia had a disorder of a psychiatric nature. It's highly associated with depression risk in later life. There is an association with physiologic abnormalities in line with hyperarousal EEG beta activation.⁷

Magnetic therapy's role

The repetitive application of low-frequency repetitive transcranial magnetic stimulation (rTMS) has proven effective in reducing neuronal excitability, contributing to modulating the abnormal hyperactivation observed in patients with insomnia. rTMS has emerged as a safe and effective option for insomnia treatment.¹¹

Previous research suggests that stimulating the dorsolateral prefrontal cortex (DLPFC) with rTMS may influence the release of key neurotransmitters in the sleep-wake cycle. While the exact mechanisms remain speculative, it is proposed that stimulating the DLPFC, whether on the right, left, or bilaterally, at low frequencies (1 Hz), could positively impact sleep architecture and quality.¹²

Navigating sleep apnea

Understanding the issue

If we refer to obstructive sleep apnea, we can describe it as a condition in which there is a partial or complete collapse of the upper airways while sleeping. This results in individuals experiencing micro-arousals, excessive daytime sleepiness, and fragmented sleep.⁵ Other consequences of experiencing obstructive sleep apnea include hypertension, cardiovascular accidents, acute myocardial infarction, and depression.¹³

How does magnetic therapy can help?

There are studies indicating that stimulating muscles in the upper airway during sleep using isolated TMS and rTMS twitches has the potential to improve airflow dynamics in patients suffering from obstructive sleep apnea syndrome without causing arousal.¹⁴

Pluses and minuses

Perks of trying magnetic therapy

For those seeking a solution to their sleep problems, magnetic therapy might be appealing, as it is a non-invasive, painless therapy that doesn't require medication. Moreover, studies report that various patients have improved the quality of their sleep.

A quick note on potential downsides

However, a drawback for those considering this therapy is that it may not be available everywhere, and the results are also linked to the number of sessions the individual undergoes.

Another point to consider is that the user cannot self-administer the therapy, as it requires special machinery and qualified personnel to apply the treatments. Neurologists, psychiatrists, neurophysiologists, or specialized technicians are the qualified professionals to administer this therapy.

FAQs

What are transcranial magnetic stimulation (TMS) and repetitive TMS (rTMS)?

TMS is a non-invasive neurophysiological process using rapidly changing electromagnetic fields to stimulate the nervous system. rTMS involves the repetitive application of electromagnetic pulses on the scalp, FDA-approved for treating treatment-resistant major depressive disorder.

How do magnetic fields affect sleep?

Magnetic fields, like those used in TMS and rTMS, generate a localized magnetic field inducing electrical depolarization in neurons below the scalp. This stimulates neuronal plasticity, influencing cortex excitability, and triggering compensatory processes.

What are the benefits of magnetic therapy for sleep disorders?

Magnetic therapy, particularly TMS and rTMS, offers a non-invasive alternative to traditional medication-based approaches. Studies indicate improvements in sleep patterns, making it appealing for disorders like hypersomnia, insomnia, and restless legs syndrome.

How does magnetic therapy impact the sleep cycle?

Magnetic therapy influences the sleep cycle by promoting neuronal plasticity. It can enhance sleep quality by improving sleep onset latency, and efficiency, and reducing disruptions in total sleep time.

Can magnetic therapy help with specific sleep disorders like insomnia or sleep apnea?

Yes, studies suggest that rTMS is effective in reducing neuronal excitability and positively impacting sleep architecture in insomnia. Additionally, stimulating muscles in the upper airway during sleep using TMS and rTMS twitches has shown potential for improving airflow dynamics in obstructive sleep apnea.

Who can administer magnetic therapy?

Qualified professionals like neurologists, psychiatrists, neurophysiologists, or specialized technicians are needed to administer magnetic therapy, as it involves specialized machinery and precise application.

Is magnetic therapy available everywhere, and are the results consistent?

Availability may vary, and results are linked to the quantity of sessions. While magnetic therapy is non-invasive and has improved sleep quality in various patients, it may not be universally accessible.

What are the potential drawbacks of magnetic therapy for sleep disorders?

One drawback is that users cannot self-administer the therapy due to the need for specialized machinery and qualified personnel. Additionally, cannot be available in some regions.

How does sleep impact overall health?

Sleep is crucial for maintaining overall health, including immune system function, stress moderation, and weight management. It has been suggested that sufficient sleep can help prevent diseases like diabetes and obesity.

What are the recommended hours of sleep for different age groups?

Sleep recommendations vary by age: 12-16 hours for 4-12 months, 9-12 hours for 6-12 years, and 7 hours or more for adults aged 18 or above. Older adults may require less sleep.

Summary

In summary, magnetic therapy, particularly through transcranial magnetic stimulation (TMS) and repetitive TMS (rTMS), emerges as a captivating avenue for addressing sleep disorders. The non-invasive nature of these therapies, coupled with their potential to enhance sleep quality, presents an alternative to traditional medication-based approaches. The localized magnetic fields and their impact on neuronal plasticity offer new perspectives in the quest for sound and restorative sleep.

As we conclude, it's essential to remain optimistic about the future of sleep solutions. Magnetic therapy, with its growing body of research and success stories, holds the promise of providing individuals with better sleep quality and improved overall well-being. For those navigating sleep disorders, exploring these innovative approaches, guided by qualified professionals, may pave the way for nights of rejuvenating rest and a brighter, healthier tomorrow. Sweet dreams await on the horizon, and the journey towards better sleep is a promising one.