The most common sleep hygiene problem we have in the US is using devices with backlit screens right before bedtime. Yes! If you have normal healthy sleep, you can actually do yourself a disservice by exposing yourself to blue light at inappropriate times. Wait… Isn’t blue spectrum light bad for sleeping? While white light has long been used to help treat mood disorders, blue light has emerged as a two-for-one application, for treating both circadian rhythm disorders and mood disorders which sometimes go hand in hand. It’s also responsible for our national problem with sleep debt and sleep deprivation. ![]() Research suggests that circadian rhythm misalignments are a growing problem.ĭieter Kunz, director of the Sleep Research and Clinical Chronobiology Research Group at Charit Universittsmedizin Berlin, said that a growing body of evidence suggests that a desynchronization of circadian rhythms may play a role in various tumoral diseases, diabetes, obesity, and depression. While most visible wavelengths on the light spectrum can reset the body clock, the most efficient way to alter circadian rhythms is by using blue light. These system shifts lead to problems with getting enough sleep. In this blog, we’ve previously discussed circadian rhythms and how they rely on light cues to help us regulate our sleep-wake cycles.įor those who suffer from circadian rhythm disorders, the use of light therapy especially with blue spectrum light has become a non-pharmacological way to help people “reset” rhythms that have shifted from normal schedules. ![]() What is blue spectrum light and why does it matter to sleep? New technology and research on circadian rhythm dysfunction has opened up opportunities to apply therapy using blue spectrum light to help reset the body clock. Blue light therapy for sleep disorders: Insomnia, DSPS, and ASPS
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