How Green Light Therapy Works for Migraines: The Science Behind NorbRELIEF

Migraines are more than headaches. For many people, migraines come with intense light sensitivity, nausea, brain fog, and a need to retreat into a dark room. In fact, light sensitivity (photophobia) affects roughly 85–90% of migraine sufferers (American Headache Society).

Over the last decade, researchers have discovered something surprising: not all light affects the brain the same way. While many wavelengths of visible light may worsen migraine symptoms, narrow-band green light has shown promising results in reducing discomfort and light sensitivity for some migraine sufferers (Harvard Medical School). 

That research helped inspire products like NorbRELIEF, designed to create a calmer lighting environment for people living with migraines and light sensitivity.

Why Light Can Trigger Migraines

During a migraine, the brain becomes more sensitive to sensory stimulation, especially light. Bright overhead lighting, screens, fluorescent bulbs, and sunlight can often worsen symptoms. Research suggests that different colors of light affect the brain differently, with blue light being more stimulating and green light producing a smaller response in migraine-related visual pathways.

Different wavelengths of visible light can influence: pain and light sensitivity, alertness, sleep cycles, stress, mood and relaxation.Research suggests blue light tends to be one of the most stimulating portions of the visible spectrum, while green light appears to create a smaller response in visual pathways.

The Harvard Discovery That Changed Migraine Research

One of the most influential discoveries came from research led by Dr. Rami Burstein at Harvard Medical School and Beth Israel Deaconess Medical Center. While studying migraine patients with light sensitivity, researchers found that:

• Most colored lights worsened migraine pain.

• Narrow-band green light caused significantly less discomfort.

• Some participants even reported reduced headache intensity under green light exposure. 

Researchers observed that green wavelengths produced smaller responses in pathways involved in light-triggered migraine pain, helping explain why green light may feel more tolerable than other colors.

Green light therapy, like NorbRELIEF, may help reduce:

• Migraine discomfort

• Light sensitivity (photophobia)

• Stress associated with chronic pain

• Migraine frequency and intensity for some individuals

Research is ongoing, and individual experiences may vary.

What Makes Green Light Therapy Different?

NorbRELIEF was designed around this emerging research. It features:

• Specialized narrow-band green light

• Flicker-free technology

• Soft, comfortable illumination

• A lighting environment designed for light-sensitive individuals

Unlike traditional lighting, NorbRELIEF is intended to create a calmer visual environment during migraines or periods of light sensitivity.

A New Approach to Migraine-Friendly Lighting

While green light therapy is still an evolving area of research, studies and migraine sufferers continue to suggest that narrow-band green wavelengths may interact with the migraine brain differently than other visible light. 

For people who struggle with light sensitivity, migraines, or discomfort from conventional lighting, green light therapy offers a non-invasive approach worth exploring.

June is Migraine Awareness Month, a time dedicated to increasing understanding of migraines and the millions of people affected by them. At Norb Lighting, we're helping spread awareness of emerging, non-invasive approaches that may support migraine sufferers, including the growing body of research surrounding green light therapy and its potential role in reducing light sensitivity and migraine discomfort.

NorbRELIEF was created around that idea: better light, designed for greater comfort. It’s light changing!