In this episode, we review a 2026 systematic review and meta-analysis examining the effects of photobiomodulation (PBM) on depressive symptoms. We break down the mechanisms, results, and practical clinical applications of this emerging, non-invasive therapy.

Ji-Woo Seok, Kahye Kim, Jaeuk U. Kim, Jung-Dae Kim, "Effect of photobiomodulation intervention for depressive symptoms: A systematic review and meta-analysis," Journal of Affective Disorders,
Volume 393, Part B, 2026, 120413, ISSN 0165-0327, https://doi.org/10.1016/j.jad.2025.120413

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HEALTHCARE PROVIDERS!  It's a classic face-off episode, where we compare sound vs light. Which one comes out ahead? Where do you spend your money to help the most patients? Tune in and learn what the latest research is saying!

Read the full study discussed in this episode --
Extracorporeal Shockwave Therapy versus laser therapy in treating musculoskeletal disorders: a systematic review and meta-analysis

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Success with Laser Therapy Flowchart & Checklist Infographic
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Plantar Fasciitis is a common cause of heel pain, affecting many. You likely have patients struggling with this painful issue. If you use a Class 4 laser for your patients you may wonder what settings work best. Listen to this episode as Dr. Rountree, DC, CMLSO discusses this new 2024 study on high power vs. higher power laser for plantar fasciitis.

Read the full study discussed in this episode --
Photobiomodulation Therapy Plus Usual Care Is Better than Usual Care Alone for Plantar Fasciitis: A Randomized Controlled Trial

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In this episode, Dr. Rountree discusses a newly released study detailing photobiomodulation and various brain disorders.

Read the full study discussed in this episode --
Transcranial photobiomodulation for brain diseases: review of animal and human studies including mechanisms and emerging trends

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Plantar fasciitis can be tough to treat but can be even more difficult when a calcaneal spur is present. In this double-blind, placebo-controlled trial, laser therapy showed some great benefits. Listen in as we summarize the study and give you takeaways to help your patients!

We are now live-streaming each recording on YouTube! Watch the recording of this episode.
(Be sure to catch our Healing at the Speed of Light Podcasts on YouTube!)

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View the many other episodes and videos available here Laser Therapy Institute

Further Resources:

Success with Laser Therapy Flowchart & Checklist Infographic
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Read about laser research on the LTI Blog
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Find out how you can Customize your LTI experience

Are you trying to sort through all the research and information about lasers? Let us help!

In this episode, we go over the results of more than 170 studies about the cellular and tissue effects of different wavelengths. Learn what the research is showing for visible and infrared wavelengths so you can decide for yourself which lasers fit your practice, in a plain-language way that makes sense!

We do a live broadcast of the LTI Podcast every other week on Facebook. Watch this episode here. 
(Be sure to also catch our Healing at the Speed of Light Podcast on Facebook!)

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Laser Therapy Institute

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Success with Laser Therapy Flowchart & Checklist Infographic
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Read about laser research on the LTI Blog
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Find out how you can Customize your LTI experience

Laser therapy has been proven to help with diabetic neuropathy pain, but could lasers stimulate damage reversal? Join us as we review the research on neurovascular function in diabetic neuropathy.

Read the full research study mentioned in this episode.

We do a live broadcast of the LTI Podcast every other week on Facebook. Watch this episode here. 
(Be sure to also catch our Healing at the Speed of Light Podcast on Facebook!)

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Laser Therapy Institute

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Success with Laser Therapy Flowchart & Checklist Infographic
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Read about laser research on the LTI Blog
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Find out how you can Customize your LTI experience

Do you use, or want to use, laser therapy to treat patients with carpal tunnel syndrome? How can you be sure your dose parameters and technique are correct? Join us to hear what recent research is showing for LLLT and HILT doses for effective treatment!

Read the full study here.

We do a live broadcast of the LTI Podcast every other week on Facebook. Watch this episode here. 
(Be sure to also catch our Healing at the Speed of Light Podcast on Facebook!)

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Laser Therapy Institute

Further Resources:

Success with Laser Therapy Flowchart & Checklist Infographic
Check out these FREE Provider Resources
Read about laser research on the LTI Blog
Learn more about what we offer on the LTI website
Find out how you can Customize your LTI experience

It is increasingly understood that laser therapy (photobiomodulation) can produce great results in treating various conditions, but how important is the way the laser is used? Dr. Rountree shares research to find the best ways to use your PBM device for your patient's health!

Read the complete study mentioned in this podcast.

We do a live broadcast of the LTI Podcast every other week on Facebook. Watch this episode here. (Be sure to also catch our Healing at the Speed of Light Podcast on Facebook!)

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Laser Therapy Institute

Further Resources:

Success with Laser Therapy Flowchart & Checklist Infographic
Check out these FREE Provider Resources
Read about laser research on the LTI Blog
Learn more about what we offer on the LTI website
Find out how you can Customize your LTI experience

Are you caught up in all the laser sales lingo and wondering which way is up? What is the difference between Class 4 lasers and superpulsed Class 3? Does high peak power mean better penetration? Listen now to find out what the science says in this episode.

Read the complete study mentioned in this podcast.

We do a live broadcast of the LTI Podcast every other week on Facebook. Watch this episode here. (Be sure to also catch our Healing at the Speed of Light Podcast on Facebook!)

YouTube Channel

Laser Therapy Institute

Further Resources:

Success with Laser Therapy Flowchart & Checklist Infographic
Check out these FREE Provider Resources
Read about laser research on the LTI Blog
Learn more about what we offer on the LTI website
Find out how you can Customize your LTI experience