PEMF vs. Biofeedback: What's the Difference?
Written by Wendy Graham, certified MagnaWave PEMF practitioner (not a physician or licensed clinician)
Both are drug-free and tech-forward, but they do very different things. Here's how to tell them apart, and where BrainTap fits.
PEMF and biofeedback are different tools. Biofeedback uses sensors to show you a body signal, like heart rate or muscle tension, so you can learn to change it. PEMF measures nothing: a mat or coil sends a pulsing magnetic field while you rest. Biofeedback is a skill you practice. PEMF is a session you receive.
People lump them together because they both sound high-tech and drug-free. Knowing the difference helps you pick the right one for what you are after.
What is biofeedback?
Biofeedback is about awareness and control. Sensors measure something your body is doing — heart rate, breathing, muscle tension, brainwaves — and show it back to you in real time so you can learn to influence it. Neurofeedback is biofeedback aimed specifically at brainwaves. The goal is training: over time you get better at noticing and steering your own responses, like unclenching a tight jaw or slowing your breathing. It is usually done with a trained provider. We don't offer biofeedback or neurofeedback at DWT Wellness.
What is PEMF?
PEMF stands for pulsed electromagnetic field. It doesn't measure anything and there is nothing to learn. You lie on a mat or have an applicator placed near an area, fully clothed, for about 20 to 30 minutes. Most people feel a light tapping or nothing at all.
Most PEMF research is in knee osteoarthritis, and the results are mixed and modest. Some reviews find improvements in pain and function; others find no difference at one month. The studies are small and many have a high risk of bias. So think of PEMF as something to try as part of your recovery routine, not a proven fix.
Is BrainTap a type of biofeedback?
Not exactly. If you found us searching for biofeedback, BrainTap may be close to what you are picturing on the relaxation side. It uses guided audio and light through a visor to help you settle into a calm, quiet state. But there are no sensors and no screen showing your signals back to you, so it isn't biofeedback. It is a guided relaxation session. The research on it is very thin: one randomized trial in women with fibromyalgia found that both BrainTap and music therapy improved their outcomes. It is not a medical treatment.
Which one should you try?
- Want to learn a skill for noticing and calming your stress response? Biofeedback, with a trained provider, is built for that.
- Want a quiet, guided way to switch off for half an hour? BrainTap is simple and hands-off.
- Looking for a drug-free session to add to your recovery routine for sore, stiff areas? PEMF is the one to ask about, with realistic expectations.
- Not sure? Tell us what you are after and we will be honest about what fits, including when something we don't offer is the better match.
Who shouldn't try PEMF or BrainTap?
- Anyone with a pacemaker or other implanted electronic device (PEMF and BrainTap's light)
- Anyone who is pregnant
- Anyone with epilepsy or a history of seizures (BrainTap)
- Anyone with metal implants — ask us first before PEMF
We can walk you through what fits your goals. Call DWT Wellness in Cedar Knolls at (973) 908-1524 or book a first session — your first one is on us.
Sources
- Tong J et al. Pulsed electromagnetic fields for pain, stiffness and function in osteoarthritis: systematic review and meta-analysis. Pain Res Manag, 2022.
- Chen L et al. PEMF therapy for knee osteoarthritis: systematic review and meta-analysis of randomized controlled trials. J Rehabil Med, 2019.
- Chang YS et al. PEMF therapy in people with knee osteoarthritis: systematic review and meta-analysis. Medicina (Kaunas), 2026.
- de Souza G et al. Brainwave entrainment and pain in women with fibromyalgia: a randomized controlled trial (vs. music therapy). Pain Med, 2026.
Want to try this yourself?
We're at 14 Ridgedale Ave, Suite 262 in Cedar Knolls, NJ. Give us a call or book online.