Blog

How TMS Therapy Works: The Science of an FDA-Approved Treatment

TMS Therapy (Transcranial Magnetic Stimulation) at MD TruCare clinic

Feeling weighed down by depression can be like trying to walk through deep mud. Every step is an effort, and the light seems far away. 

For years, many people have relied on antidepressant medications and talk therapy. These treatments help millions, but they do not work for everyone. If you have tried different treatments without finding relief, it is easy to feel hopeless. But what if there was another way?

There is a modern, non-invasive treatment that is changing lives: Transcranial Magnetic Stimulation, or TMS. 

This guide offers a simple explanation of how TMS works. We will explore the science behind this FDA-approved treatment, showing you why it brings new hope to people fighting depression. If you have ever wanted TMS therapy explained in a way that is easy to understand, this article is for you.

What Is Depression and Why Is It So Hard to Treat?

Depression is more than just feeling sad. It is a serious medical condition that affects your mood, thoughts, and body. It is caused by a mix of things, including genetics, life events, and brain chemistry.

Inside our brains, nerve cells, or neurons, talk to each other using electrical signals and chemical messengers. 

In a person with depression, some parts of the brain are less active than they should be. The communication between nerve cells slows down, especially in the areas that control mood.

Traditional antidepressants try to fix this by changing the levels of chemical messengers like serotonin. But this approach does not work for about one-third of people. Their brains need a different kind of help to “wake up” and start working correctly again.

TMS Therapy Explained: A Simple Look at the Science

So, how TMS works is quite fascinating. Imagine your brain is like a sleeping muscle that needs to be gently exercised to get stronger. TMS therapy does something similar by using magnetic fields to stimulate the underactive parts of your brain.

The Key Parts of TMS Therapy

Component

What It Is

What It Does

TMS Machine

A device that creates magnetic pulses.

Generates the energy needed for treatment.

Treatment Coil

A figure-8 shaped tool.

Placed on your head to deliver the pulses.

Magnetic Pulses

Similar to an MRI machine’s energy.

Safely pass through the skull.

Target Area

The prefrontal cortex.

The part of the brain that controls mood.

🔆 How TMS Uses Magnetic Pulses to Activate Brain Cells

During a TMS session, the coil sends quick, repetitive magnetic pulses to a specific spot on your head. 

These pulses create a small electrical current in the brain cells just beneath the coil. This current is very gentle, but it is enough to wake up the sleeping neurons and get them talking to each other again.

🧠 How TMS Strengthens Healthy Brain Pathways Over Time

Think of it like a personal trainer for your brain cells. The regular “workouts” from TMS help your brain build new, healthier communication pathways. Over time, this restores normal brain activity and lifts the symptoms of depression.

🧠 Start Your TMS Evaluation Today

Take the first step toward FDA-approved, medication-free depression relief. Schedule your consultation now.

Call: 817-722-6078

Why Is TMS Therapy FDA-Approved?

The FDA (U.S. Food and Drug Administration) only approves treatments that are proven to be both safe and effective. TMS therapy went through years of scientific studies and clinical trials before it was approved in 2008 for treatment-resistant depression.

What FDA Approval Means for You:

  • ⮞ Safety: The treatment has been tested and found to have a low risk of serious side effects.
  • ⮞ Effectiveness: Studies show that it works for a significant number of patients.
  • ⮞ Trust: You can trust that the treatment is backed by real science.

Since its first approval, the FDA has also cleared TMS for treating other conditions, like OCD and anxious depression.

TMS vs. Other Brain Stimulation Therapies

Feature

TMS Therapy

Electroconvulsive Therapy (ECT)

Invasiveness

Non-invasive (no surgery).

Invasive (requires anesthesia).

Anesthesia

Not needed. You are awake.

General anesthesia is required.

Side Effects

Mild scalp discomfort, headache.

Memory loss, confusion.

Recovery

You can drive home right after.

Requires hours of recovery.

What Does a TMS Session Feel Like?

Many people are nervous about trying a new treatment. Knowing what to expect can help you feel more comfortable. A TMS therapy session is surprisingly simple and straightforward.

  1. ⮞ You Relax in a Chair: You will sit in a comfortable chair, much like a dentist’s chair.
  2. ⮞ The Coil is Placed: A technician will gently place the magnetic coil against your head.
  3. ⮞ The Pulses Begin: You will hear a series of clicking sounds and feel a tapping sensation on your scalp.
  4. ⮞ You Can Relax: During the session, which lasts about 20 minutes, you can watch TV, listen to music, or just sit quietly.


There is no sedation, so you are awake and alert the whole time. When the session is over, you can immediately go back to your normal day, including driving your car.

The Benefits: How TMS Can Change Your Life

The most important part of understanding how TMS works is seeing the results. People who find success with TMS often report life-changing benefits.

Key Benefits of TMS Therapy:

  • It Works When Other Things Have Failed: It offers hope for those with treatment-resistant depression.
  • It is Not a Medication: You do not have to worry about the side effects that come with pills, like weight gain or sexual problems.
  • It is Safe and Well-Tolerated: The most common side effect is a mild headache that usually goes away.
  • It Has Lasting Results: Many patients experience long-term relief from their depression symptoms.


From a Patient’s Perspective

Before TMS

After TMS

“I felt empty and had no energy.”

“I feel lighter and enjoy my hobbies again.”

“It was hard to focus at work.”

“My concentration has improved so much.”

“I felt isolated from my family.”

“I am more present and engaged with my loved ones.”

Who Is a Good Candidate for TMS Therapy?

TMS is a great option for many, but it is not right for everyone. A doctor will need to do a full evaluation to see if it is a good fit for you.

You might be a good candidate if:

  • You have been diagnosed with Major Depressive Disorder.
  • You have tried antidepressant medications without getting the relief you need.
  • You have had side effects from medications that were too hard to handle.
  • You are looking for a non-drug treatment option.


TMS may not be safe for you if you have:

  • Metal implants in or near your head (like aneurysm clips or cochlear implants).
  • A history of seizures or epilepsy.


Comparing Patient Profiles

Good Candidate

Poor Candidate

Tried 3 antidepressants with no luck.

Has a metal plate in their skull.

Cannot tolerate medication side effects.

Has a pacemaker (requires caution).

Prefers a non-invasive treatment.

Is currently pregnant.

Finding a TMS Provider You Can Trust

If you think TMS might be right for you, the next step is to find a qualified provider. Look for a clinic with experienced doctors and technicians who can answer all your questions and make you feel comfortable. 

A good provider will conduct a thorough evaluation and be honest about whether TMS is the best choice for you.

Take the first step by talking to a mental health professional. Ask them about TMS and if it could be part of your path to wellness. You deserve to feel better, and there is more hope now than ever before.

Frequently Asked Questions about TMS

Does TMS therapy hurt?

No, TMS is not painful. You may feel a tapping sensation on your head where the coil is placed, but most people get used to it quickly.

A standard course of TMS is usually 5 sessions per week for 6 weeks, followed by a tapering period. Each session lasts about 20 minutes.

Yes, most major insurance plans, including Medicare, now cover TMS therapy for treatment-resistant depression. You will need to check your specific plan for details.

Some patients start to notice small improvements within a few weeks, but it can take the full course of treatment to experience the maximum benefits.

Many people experience long-lasting relief from TMS. Some may need occasional maintenance sessions in the future to keep their symptoms from returning.

Yes. TMS is often used along with an antidepressant. Your doctor will create a treatment plan that is right for you.