Migraine and Light Therapy: Red Light, Blue Light, and Headache
Light has a complicated relationship with migraine. During an attack, ordinary brightness can feel unbearable — photophobia is one of the defining features of the disorder. Yet light is also being studied as a possible therapy, with researchers asking whether specific colors might calm the migraine brain rather than aggravate it. The answers, so far, are surprising.
This is an area where the science is genuinely evolving, and it's easy to find overstated claims. Here's a grounded look at what blue, red, and green light each seem to do, and what you can reasonably act on today.