Protecting circadian rhythm involves going outside, getting morning sunlight in the eyes, sleeping at the same time daily, avoiding blue light, using red lights at night, choosing natural bedding fabrics, and managing bedroom CO2 levels.

“Protect your circadian rhythm. Go outside. Get sunlight in your eyes in the morning. Go to sleep as much as you can at the same time every day. Protect your environment during the day with avoiding blue lights that are flickering, red lights at night. Think about the quality of your bedding, natural fabrics. Think about the CO2 environment in your bedroom.”