Hacker News new | past | comments | ask | show | jobs | submit login Fundamentals of circadian entrainment by light (2021) ( sagepub.com ) 12 points by NaOH 1 day ago | hide | past | favorite | 1 comment help swed420 1 day ago [–] Anybody know why the "red:blue ratios vs time of day biology is a myth" crowd believes what they do? I've never bothered to investigate, because I can feel the difference when they don't coincide naturally, and thus take measures to keep them in check throughout the day/night. reply Consider applying for YC's Winter 2027 batch! Applications are open till November 2. Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact Search: