Red Light
Can a Regular Red Light Bulb Work as Red Light Therapy?
Colour is what your eye sees. Therapy is wavelength and irradiance, two numbers a five euro bulb doesn't have.
Can Red Light Therapy Replace Sunlight in Winter?
No for the clock, yes for the missing half: sunlight is about 50% infrared, and winter deletes it. The split explained.
At Home Red Light Therapy for Wrinkles: Clinic-Grade LEDs
Same LEDs as the clinic, without the 90 euro sessions. What three controlled trials measured, week by week.
Red Light Therapy for Sore Muscles: What Athletes Know
Photobiomodulation has been in pro recovery rooms since 2008. The protocol, the dose, and why amateurs shouldn't wait.