Photobiomodulation (670 nm) for Aging Retina: Lifespan Signals from Flies to Mammals
Photobiomodulation at 670 nm targets mitochondria, the tiny structures inside cells that make most of our energy (ATP). In mitochondria, a key enzyme...
Near-infrared Light
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near-infrared light
Near-infrared light is a part of the light spectrum just beyond the red light that our eyes can see. It spans wavelengths that are longer than visible red light, so you cannot see it, but it can pass through skin and some deeper tissues better than visible light can. Because of that ability to penetrate, it is useful for medical imaging, for therapeutic uses that aim to reach cells below the surface, and for technologies like remote controls and night-vision equipment. In medical and wellness uses, near-infrared can help stimulate biological processes when given at the right dose, and it is often chosen for treatments that need to reach deeper layers of tissue. It is also used in sensors and cameras to detect heat or to see in low light because many materials reflect or emit near-infrared differently than visible light. While it is generally safe at low intensities, strong near-infrared sources can heat tissue or damage the eyes, so safety precautions and correct device settings are important. Because it is invisible, people might not realize they are being exposed, which makes clear labeling and training more important. Overall, near-infrared light is a versatile tool with medical, industrial, and consumer applications due to its ability to interact with materials and tissues beneath the surface.