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The Science of Allay

The patented Allay band of light can make even your worst headaches less debilitating. Here’s how it works:

It's about precision

Woman in everyday light and Allay green light
Science of Allay vs Red and Blue Light

Smaller signals, happier brain

Follow the Research

People with migraine often complain that light hurts them. When Prof. Rami Burstein and his colleagues conducted research to understand why, they discovered a new pathway in the brain that explains how light hurts. The pathway begins in the eye as light signals come in. Surprisingly, however, it ends right in a group of neurons (nerve cells) that tell the brain a headache is happening. When the light signals travel on that pathway and hit that group of neurons, they make the headache more painful.

As he set out to learn more about this pathway, Prof. Burstein went back in his mind to his conversations with patients and an intriguing pattern he had noticed: they often said their headaches were worse on cloudy days. Light on a cloudy day has different color characteristics than light on a sunny day. Might the color of light matter?

Studying how people’s perception of pain changes according to the color of light around them, Prof. Burstein found that headaches felt worse when patients were exposed to blue, red, and yellow lights, but not when they were exposed to a very narrow band of green light. He spent the next two years trying to understand why. What he found was that red, blue, and yellow lights generated much larger electrical signals in the eyes and the brain than the very special narrow band of green light. Smaller signals, he concluded, were less irritating.

This groundbreaking discovery led to the development of the Allay Lamp, which emits only the precise narrow band of green light that minimizes irritation and keeps the brain calm.