Optional light tool when outdoor morning light is hard to get. Does not replace outdoor spectral context.
Bright light therapy (about 10,000 lux at the eye, typically about 30 minutes in the morning at the distance the maker specifies) is a potent circadian entrainer, especially useful in northern latitudes or for people with limited outdoor time. Use a UV-filtered box, don’t stare into the light, and check with your physician first if you have bipolar disorder, a retinal or other eye disease, or take light-sensitizing medication.1
- Terman M, Terman JS, 2005. Light therapy for seasonal and nonseasonal depression: efficacy, protocol, safety, and side effects. CNS Spectrums 10(8):647-663. doi:10.1017/s1092852900019611
Read more: Surfer · Coach · Sage
Amazon opens in a new tab.