Too much light during nighttime sleep may damage the heart, new research finds nbcnews.comEven low light during sleep may damage your heart CNNThis sleep habit may be bad for your heart, new study finds USA TodayNighttime light exposure may alter heart structure and function News-MedicalThe hidden risk to your heart from sleeping in low light News4JAX
Too much light during nighttime sleep may damage the heart, new research finds - nbcnews.com
