A new study found that using a smartphone between 11 p.m. and 1 a.m. significantly increases the risk of suicidal ideation and planning the following day, particularly in high-risk adults. Passive consumption, like scrolling through social media, is identified as the primary risk factor. In contrast, active use involving communication (e.g., texting) late at night was associated with a lower risk, suggesting it can be protective. Researchers captured over 7.5 million phone screenshots to track usage objectively, moving beyond unreliable self-reporting to analyze real-world behavior with precision. Participants who had longer breaks from their phones—specifically seven to nine hours—showed the lowest levels of…

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