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Dr. Samer Hattar - NIH Chief

Dr. Samer Hattar is a chronobiologist and a leader in the field of non-image-forming photoreception. He is currently the Chief of the Section on Light and Circadian Rhythms at the National Institute of Mental Health. He was previously an associate professor at Johns Hopkins University. Listen to him explain the safety of all the COVID-19 vaccines... must watch!

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