Michael Breus, PhD, DABSM, explains how to manage blue light exposure to protect sleep and health.

When I’m trying to live my best, healthiest life—and most of us are—I pay daily attention to how I’m treating my body. I watch the food I’m eating, and the exercise I’m getting. I pass on that third glass of wine, and set my alarm to make it to spin class a couple times a week.

But how much thought should we all give to light exposure? I tell all my patients: light is medicine.

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