New research from the University of Arizona Health Sciences found that people who suffer from migraine may benefit from green light therapy, which was shown to reduce the frequency and intensity of headaches and improve patient quality of life.

According to the Migraine Research Foundation, migraine is the third most prevalent illness in the world, affecting 39 million people in the United States and 1 billion worldwide.

This is the first clinical study to evaluate green light exposure as a potential preventive therapy for patients with migraine.

During the study, patients were exposed to white light for one to two hours a day for 10 weeks. After a two-week break, they were exposed to green light for 10 weeks.

None of the study participants reported any side effects of green light exposure.