myopia Circadian Reboot | E23 Zaid K Dahhaj Explains the Science of Sunlight and Health PamPam Killeen speaks with Zaid K. Dahhaj about the significance of circadian health, the historical use of sunlight for healing, and the modern misconceptions surrounding sun exposure. Circadian Reboot | E14 Richard Syrett Interviews Pam Killeen about Heliotherapy PamRichard Syrett (Sauga 960AM) interviews Pam Killeen about the often misunderstood relationship between sunlight and health.