101: Red Light Therapy Explained: How Does It Affect Mitochondria, Energy & Inflammation?

How does red light therapy actually work—and what happens inside your cells when you're exposed to red and near-infrared light?

Dr. Paul Barattiero joins Autoimmune Adventures to explain the science behind red light therapy, mitochondria, ATP production, oxidative stress, cellular energy, inflammation, and recovery.

We've all seen red light therapy everywhere—from wellness centers and gyms to spas and home devices. But seeing that familiar red glow doesn't tell us what is actually happening inside the body.

So we wanted to understand the science.

In this episode, Stacy, Becky, and Alysia talk with Dr. Paul about how specific wavelengths of red and near-infrared light interact with our cells, why mitochondria and ATP production matter, and how oxidative stress can interfere with cellular energy.

We also explore the growing body of research surrounding photobiomodulation and its potential applications, including recovery, sleep, cellular function, collagen production, and more.

And then we get practical.

With so many red light devices now on the market, how can consumers know what they're actually getting? Dr. Paul explains why factors such as wavelength, irradiance, dosage, exposure time, and independent testing matter when evaluating red light technology.

In this episode:

• What red light therapy and photobiomodulation actually are • How red and near-infrared light interact with cells • Why mitochondria matter • ATP production and cellular energy • Oxidative stress and fatigue • Research into potential applications of red light therapy • Why wavelength, irradiance, and dosage matter • How treatment time changes the amount of light delivered • What to look for when evaluating red light devices • Why independent testing matters • How to become a more informed wellness consumer

For anyone living with autoimmune disease or chronic illness—or anyone who's looked at all those glowing red panels and wondered, “Does this actually do anything?”—this conversation gives you a fascinating place to start.

Please note: This conversation is for educational purposes only and is not medical advice. Discussion of research or potential applications does not mean red light therapy has been proven to diagnose, treat, cure, or prevent a particular disease or condition. Talk with a qualified healthcare professional about your individual health needs.

You are worthy of joy. Disease does not define your life. You do!