Why Using Your Phone at Night May Not Be as Bad as You Think
By Rebecca Schneid, Nov 20, 2025
Dr. Alex Dimitriu, a psychiatrist and sleep medicine doctor in Menlo Park, Calif., calls the study “fascinating, because it goes against a very large established body of research which suggests a clear effect on sleep quality from screen use,” citing the 2025 American Cancer Society study as an example. “The authors do acknowledge some interesting findings [including] that causality cannot be clearly determined from this study. And it is possible that good sleepers either use phones or they don’t, while poor sleepers aren’t sure what to do,” Dimitriu tells TIME. In Dimitriu’s professional opinion: “Screens are not good for sleep.” “I can stay up [for] hours scrolling through news articles, blogs, and social media posts. If I try reading a book, I’m out within 10 minutes. My patients feel the same,” he says. “Screens, besides being bright, are just too interesting.”
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