LED face masks emit different wavelengths of light, such as red, yellow, green ... year's resolutions was to stop scrolling in bed before going to sleep. So, I have created a rule for myself ...

To achieve adequate sleep duration, it’s not enough to simply block blue light or wear a wearable device. Technology Use Before Bedtime—What Does the Latest Research Suggest? Blue light ...

Study participants wore trackers on their wrists to measure their activity levels and sleep patterns. We found that people exposed to more hours of blue light in the morning had better sleep and more ...