Everything you need to know about How to Prepare for Your First TMS Session — how it works, what it costs, and how to find a provider who actually knows what they're doing.

Knowing what to expect before your first TMS session can make the whole experience less intimidating. Here is a practical guide covering what to do before, during, and after your first appointment.

What You’ll Learn

• How to prepare before your first TMS appointment
• What the mapping session involves and how long it takes
• What to expect during treatment sessions
• What happens immediately after each session
• The treatment schedule and how to plan around it

Before Your First Appointment

Eat a normal meal. Do not show up on an empty stomach. TMS does not require fasting. Having food in your system helps prevent lightheadedness.

Take your medications as usual. Unless your psychiatrist specifically tells you to stop or adjust something, keep taking your current medications. Most people continue their antidepressants during TMS treatment.

Skip the caffeine excess. Your normal coffee is fine. But do not double up. Caffeine can increase scalp sensitivity and make the tapping sensation more noticeable during your first session.

Remove metal and electronics. You will be near a powerful magnet. Remove earrings, hair clips, piercings near your head, and any metal jewelry above the neck. Leave your phone and credit cards in the waiting room. They will not be damaged, but the clinic will ask you to store them away from the treatment chair.

Bring entertainment. Sessions last 19-37 minutes for standard TMS. If your clinic offers theta burst stimulation, sessions are about 3 minutes. Either way, most clinics let you watch TV, listen to music, or just relax. Bring earplugs (the clinic provides them, but some people prefer their own) and something to occupy your time.

As we covered in our what TMS feels like guide, the first session is the hardest. Pain ratings drop significantly after the first few sessions. Going in prepared helps.

During the First Session: Mapping

Your first visit takes longer than subsequent sessions, usually 45-60 minutes instead of 20. That is because the technician needs to map your brain to find the right treatment spot.

As we covered in our mapping session guide, the mapping session involves:

What mapping involves:

• The coil is placed on your head and moved around while delivering single pulses
• They are looking for the spot that makes your thumb twitch (the motor cortex)
• From that reference point, they calculate exactly where to aim the coil for depression treatment
• They also calibrate the intensity, the minimum power needed to make your thumb move (your motor threshold)

This process is not painful, but it feels weird. The thumb twitching is involuntary and a little unsettling the first time. Completely normal.

The mapping session is a one-time calibration step. Some clinics re-map periodically, but most do not unless something seems off with how you are responding.

What Treatment Actually Feels Like

Once mapping is done, treatment goes like this:

1. You sit in a reclining chair
2. The technician positions the coil against your head
3. The machine delivers pulses in bursts. You hear loud clicking and feel tapping on your scalp.
4. Each burst lasts a few seconds, followed by a pause
5. This repeats for 19-37 minutes depending on the protocol (or about 3 minutes for theta burst)

The tapping ranges from mildly annoying to uncomfortable for the first few sessions. It gets better. Most people say it is completely tolerable by sessions 5-6.

The most important thing to know: the first session is the worst. Pain ratings at session 1 average 4.2/10. By session 5, that drops to 2.8/10. By session 20, it is down to 1.1/10.

After Your Session

Immediately after: You can stand up and leave. There is no recovery time needed.

Driving: Yes. You can drive yourself home and back to work. TMS requires no sedation, no anesthesia, no impairment. Our can I drive after TMS guide covers this in detail.

Headache: If you get a headache, take Tylenol or Advil. Over-the-counter pain relievers work fine.

The rest of the day: Go back to work. Exercise. Eat normally. Drink coffee. Take your medications. There are no restrictions on activities after TMS.

Fatigue: Some people feel slightly tired the first few times. This is normal and typically fades.

The Schedule

Understanding the commitment helps you plan:

Plan your calendar accordingly. The daily commitment is the biggest practical challenge. But sessions are short enough that many people go during lunch breaks or before work.