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Nightphone use and heart risks
The article discussed the impact of nighttime light exposure on the heart and overall health. A recent study showed that illumination levels exceeding 3 lux during the night are associated with negative cardiac changes, such as left ventricular hypertrophy, decreased heart contraction efficiency, and increased thickness of the heart wall. The study explained that these changes are largely related to disruptions in melatonin hormone secretion caused by nighttime light exposure, especially in cases of sleep fragmentation and shortened sleep duration, although the relationship is not directly causal. Based on the findings, the study recommended preventive measures to reduce exposure to nighttime light, such as covering windows, using eye masks, and dimming device lights during sleep, to avoid harmful effects on the heart.
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