Study links bedroom light from phones to heart changes | The BriefBrief
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Event Brief

Study links bedroom light from phones to heart changes

Filed: Sep 11, 2026 at 2:07 AM ET
Summary: A new study found that even low levels of light from a phone screen during sleep are associated with potentially harmful changes in heart structure and function. The findings suggest that bedroom lighting conditions may affect cardiovascular health.
WHO: A new study
WHAT: The study reports an association between low-brightness phone-screen light during sleep and potentially harmful heart structure and function changes.
WHEN: Sep 11, 2026 at 1:04 AM ET
WHERE: Location not specified
WHY: Cause not yet established.

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