Red light therapy gets plenty of attention as an anti-aging beauty tool. What caught my attention this week is something more interesting: its potential to support cellular energy, recovery, and mobility as we age.

If a tool can help women stay active, manage pain, and recover more efficiently—inside and out—that’s a trend I can fully get behind.

🧠 TL;DR — What the research suggests so far:

  • Red light therapy may support pain relief and physical recovery

  • Evidence is strongest for musculoskeletal issues

  • Benefits depend heavily on dose, consistency, and context

👉 Want a practical breakdown? Here’s what matters.

Before we get into it, we’d love to know…

Red light therapy isn't only about improving our looks. Research suggests it may also help protect against mitochondrial decline, one of the earliest drivers of aging. 

Mitochondria are the tiny structures in our cells that produce energy. As they become less efficient over time, recovery slows, inflammation rises, muscle and connective tissue weaken, and fatigue becomes harder to shake.

For many women, this process accelerates in our late 30s through 50s, shaped by hormonal shifts, chronic stress, and less time for consistent recovery that our bodies need to repair, reset, and restore. The result isn’t a sudden breakdown. It’s a gradual loss of resilience.

👉 What mitochondrial decline actually affects day to day: cellular energy, recovery, and aging

The science: How red light therapy supports cellular energy

Red and near-infrared light wavelengths are absorbed by enzymes inside the mitochondria, the part of the cell responsible for energy production. At low intensity, this light doesn’t heat tissue. Instead, it acts as a subtle biochemical nudge that may help cells operate more efficiently, explains Zulia Frost, MD, DCMAc.

This may help explain why red light therapy shows promise in areas like pain modulation and physical recovery, particularly for musculoskeletal discomfort, joint and tendon pain, and overuse injuries.

These outcomes are especially relevant for women, as pain and slower recovery are among the most common reasons physical activity declines with age.

While multiple studies support these effects, researchers note that results vary depending on the condition, device, and how the therapy is used, and the underlying mechanisms are still being studied.

“Red and near-infrared light are associated with improvements in recovery, cognition, mood, physical performance, and overall tissue regeneration, supporting healthy aging from the inside out,” says Dr. Zulia Frost.

Why it matters: low-grade inflammation erodes women’s healthspan

Chronic, low-grade inflammation—often called inflammaging—poses a larger longevity threat to women than we often acknowledge.

Women tend to live longer than men, but also spend more years managing autoimmune conditions, chronic pain, and reduced mobility. And inflammation isn’t always loud. It often shows up as lingering soreness, slower recovery, or a body that doesn’t bounce back the way it used to.

Over time, this low-grade immune activation is linked to cardiovascular disease, diabetes, frailty, and cognitive decline. It compounds across systems, shaping how we move, recover, and function year after year.

By improving circulation and influencing inflammatory signaling, red light therapy may help shift the body toward repair rather than ongoing damage.

Inflammation doesn’t just affect one system; it compounds across the body, shaping how we move, recover, and function over time.

Can you hypnotize yourself to live longer? Erin explores the answer to this question with Ursula James.

Listen on YouTube, Apple, Spotify, or wherever you get your podcasts.

Red light therapy’s most important benefit: pain reduction

Chronic pain doesn’t just hurt—it disrupts sleep, raises cortisol, reduces physical activity, and increases reliance on medications with long-term side effects.

By supporting recovery and reducing pain, red light therapy may be especially helpful for:

  • Neck and shoulder tension

  • Joint and tendon pain

  • Overuse injuries

  • Menstrual cramps

For many women, reducing pain is the difference between staying active and slowly pulling back.

What about brain health?

Early research also suggests red/near-infrared light may support brain blood flow, help brain cells produce energy more efficiently, and reduce inflammation linked to cognitive decline. 

These findings are still emerging. What is well established, however, is that better sleep, lower pain, and less inflammation support physical activity—and physical activity is strongly protective against cognitive decline.

Seen through that lens, red light therapy may support brain health indirectly by improving the systems that keep the brain resilient.

Looking to connect with other health-conscious women on topics relevant to longevity? Join our private community hosted on Circle! It’s free to join and easy to use, and we’d love to see you there. 😊 Reach out to [email protected] with any questions.

Why more isn’t better with red light therapy

Red light therapy follows a biological “Goldilocks” principle: too little has no effect, while too much can blunt benefits or cause overstimulation.

Used thoughtfully, at appropriate doses, it may support recovery. Used excessively, it offers no advantage.

Dr. Frost emphasizes that red light therapy works best when paired with the fundamentals—not as a replacement for them. Sleep, movement, nutrition, and stress management still matter most.

Chronic pain and functional decline rarely appear overnight. They emerge gradually, as recovery becomes less efficient and cellular energy is stretched thin. Tools that support energy and recovery early, before breakdown becomes the norm, may help slow that trajectory.

Seen this way, red light therapy isn’t a cosmetic shortcut. It’s one potential way to support movement, recovery, and aging with less friction.

2026 is the year to invest in your health. Kick it off by joining 75 experts in San Francisco for 2 days to discuss the future of women’s health and longevity at the Livelong Women’s Health Summit. Not sure if it’s for you? View the agenda and speakers first, then…

Take $50 off any ticket type with the code TIFFANY. 💜

Want to get involved in the event?

🛍️ Vendors have the opportunity to connect with your audience at the Livelong Women’s Health Summit, April 17–18 in San Francisco. See the media kit for more information.

💫 If you’re passionate about women’s health and longevity and want to help spread the word about the event , you can join us as an Ambassador! Check out the details and reach out to [email protected] with any questions.

👀 In case you missed it:

  1. Erin looked at Longevity trends for 2026.

  2. If you are considering a detox, read this first.

  3. Can you hypnotize yourself to live longer? Learn the answer from Ursula James.

Poll Response

We asked, you answered:

Which detox-related answer feels most true for you right now?

“I don’t detox, but I worry my body isn’t functioning optimally” took the lead. Hit reply and tell us about your concerns if you’d like. We’ll try to cover the most common ones in upcoming issues.

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The information provided about wellness and health is for general informational and educational purposes only. We are not licensed medical professionals, and the content here should not be considered medical advice. Talk to a doctor before trying any of these suggestions.

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