Red Light Therapy and Blood Sugar: What the 2024 Study Found
A 2024 study linked one 15-minute session of 670 nm red light to a smaller post-drink blood sugar rise in healthy adults. Here is what the science actually shows, and what it does not.
Red Light Therapy and Collagen Synthesis: Fibroblast Signaling and Dermal Remodeling
What happens between light reaching your skin and a change in collagen? Explore fibroblast signaling, collagen production and breakdown, and the human evidence behind wrinkle and firmness claims.
Mitochondrial Redox Signaling and Red Light Therapy Explained
Mitochondria help cells produce energy and send chemical signals. Explore how red light therapy may influence these messages and where the evidence stands.
Rest in Peace? What Science Says About Red Light Therapy for Sleep
Halloween can push bedtime later, but can red light therapy help you rest? Explore the science behind melatonin, light exposure, and sleep, including what small human studies found and what remains uncertain.
Cheaper Isn’t Always Better: Don’t Take the Easy Way Out With Your Next Red Light Therapy Device. Here Are 7 Reasons
Cheap red light therapy devices can be tempting, but price tells only part of the story. Learn what to check before buying, from light output and coverage to warranties and support.
Red Light Therapy and Nitric Oxide. What Does Photodissociation Mean for Cellular Respiration?
How are red light therapy and nitric oxide connected? Learn how light-driven nitric oxide release could influence mitochondrial respiration and why this proposed mechanism remains under investigation.
It’s Just a Light Bulb. How Does Red Light Therapy Actually Help Me?
It’s a light shining on your skin, so what happens next? Explore how red light therapy works, from light absorption to cellular responses, and what the research actually shows.
Can You Overdo Red Light Therapy? Why More Isn’t Always Better
Quick Answer Can you overdo red light therapy? Yes. You can exceed your device’s recommended exposure, and increasing light exposure does not always improve the biological response. However, receiving less benefit and experiencing an injury are different outcomes. Your session time, light intensity, wavelength, positioning, and treatment schedule all matter. Follow the instructions for your […]
Red Light Therapy for Tendonitis: Can It Help With Tendon Pain?
Can red light therapy for tendonitis help with pain? Explore the research, how pain relief differs from tendon repair, and what clinical findings mean for home devices.
How Does Water in the Body Absorb Infrared Light?
Quick Answer Water in the human body absorbs infrared light differently depending on the wavelength. When water molecules absorb certain infrared wavelengths, the light’s energy can excite molecular vibrations and eventually contribute to heat. However, water absorbs relatively little light at many wavelengths commonly used for red and near-infrared light therapy, while absorption becomes much […]