Light of any kind has a suppression effect on the production of the sleep inducing hormone,"Melatonin," and especially bright artificial lights like the ones from your TV, computer, or smartphone.
任何形式的光線都會對誘導睡眠的激素「褪黑素」的產生產生抑制作用,尤其是明亮的人造燈光,如電視、電腦或智能手機的燈光。