Blue light before bedtime is renowned for making it harder to fall asleep - but blue light in the morning could be just what ...

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 ...

affecting our usual sleep-wake cycle. Yuen advises being mindful when shopping for lenses. “Some [lenses] may have anti-scratch and anti-reflective features, while some may not block blue light due to ...