Transcranial magnetic stimulation (TMS) is a noninvasive treatment for major depressive disorder, and many outpatient clinics offer it. If you are weighing options beyond medication and therapy, knowing how TMS works may help your next appointment. Here is more information on this treatment and how it can help people with depression:
Uses Magnetic Pulses
When your session begins, a technician positions a magnetic coil against your scalp near your forehead. The coil delivers brief, focused magnetic pulses to a specific area of the brain. These pulses feel like light tapping, and the device makes a loud clicking sound. Most clinics provide earplugs for your comfort.
You stay awake throughout the procedure, and you do not need anesthesia. Since transcranial magnetic stimulation requires no sedation, most people drive themselves home afterward. A standard session is typically short. You may resume your normal activities right away.
Stimulates Underactive Cells
Research links depression to lower activity in the left dorsolateral prefrontal cortex, and TMS targets this region. This area helps regulate mood, focus, and decision-making. When magnetic pulses reach these nerve cells, they create small electrical currents. These currents prompt the cells to fire.
Repeated stimulation over several weeks may strengthen connections between brain regions that manage mood. The effect builds gradually, so most people attend sessions five days a week. A full course typically spans several weeks. Since each brain responds differently, the pace of change varies from person to person.
This non-invasive approach offers a promising alternative for individuals who haven’t found relief through traditional methods, and many find it to be a life-changing experience. It’s a painless procedure that doesn’t require sedation or recovery time. While results can take time to appear, they may lead to lasting improvements in mood and overall well-being.
Addresses Treatment-resistant Depression
Doctors often use TMS for treatment-resistant depression. This term describes depression that has not improved after at least two antidepressant trials. Some people get little relief from medication, and others stop taking it because of side effects. Providers typically review several factors before recommending TMS:
- Diagnosis of major depressive disorder
- Improvement after two or more antidepressants
- Medication side effects that are hard to tolerate
- Lack of metal implants in or near the head
Since the magnetic field affects metal, providers screen for implants like aneurysm clips or cochlear implants. A history of seizures may also affect eligibility. Bring a list of your current medications to your consultation. Your provider will review your medical history, and you can ask questions at that visit.
Reduces Symptoms
Some patients report gradual changes in mood, sleep, and energy during treatment. Results vary from person to person, and some people notice no meaningful change. If your symptoms ease, your provider may recommend occasional maintenance sessions. Reported side effects are generally mild and include:
- Scalp discomfort at the coil site
- Headaches that are mild
- Lightheadedness
- Twitches in facial muscles during pulses
Book Transcranial Magnetic Stimulation Sessions
If TMS sounds like a fit, start by talking with your psychiatrist or primary care provider. They can review your treatment history, and they can refer you to a TMS clinic. Insurance plans may cover TMS for treatment-resistant depression with prior authorization. Ask the clinic about session times, insurance requirements, and the full treatment schedule.
