Do light goggles or light therapy glasses work?

A reader asks: Do light goggles or light therapy glasses work? Answer: Head-mounted light therapy devices have been around for many years, the first by the same investigators who developed light box therapy...

I work in rotating shifts: two days of 7 AM – 3 PM, then

A reader asks: I work in rotating shifts: two days of 7 AM - 3 PM, then two days of 3 PM - 11 PM,...

I get the impression from everything I have read that exposure to light at the time of waking

A reader asks: I get the impression from everything I have read that exposure to light at the time of waking is important for fighting...

My 24-year-old daughter had a kidney transplant three years ago

A reader asks: My 24-year-old daughter had a kidney transplant three years ago and will always be on anti-rejection meds. She cannot be in the...

 What is your opinion about the safety and efficacy of green light boxes? …

A reader asks:  What is your opinion about the safety and efficacy of green light boxes? A manufacturer cites some research to support the claim...

I have decided to stop using the light and have not used it for 4-5 days now. I am still waking up at 5...

A reader asks: I have decided to stop using the light and have not used it for 4-5 days now. I am still waking up...

The morningness-eveningness questionnaire (AutoMEQ) indicated my melatonin onset as 9:45 p.m. and my ideal light therapy session time as 6:30 a.m. I usually sleep...

A reader asks: The morningness-eveningness questionnaire (AutoMEQ) indicated my melatonin onset as 9:45 p.m. and my ideal light therapy session time as 6:30 a.m. I...

Would light therapy be effective for a person who is totally blind? Some people with blindness seem to have mood swings with the seasons....

A reader asks: Would light therapy be effective for a person who is totally blind? Some people with blindness seem to have mood swings with...

My goals are to regularize my sleep-wake cycle and treat some mild but persistent depression. At your suggestion, I took your Automated Morningness-Eveningness Questionnaire...

A reader asks: My goals are to regularize my sleep-wake cycle and treat some mild but persistent depression. At your suggestion, I took your Automated...

My 16-year-old daughter is perpetually tired, even though she sleeps well and gets plenty of it. She goes to bed at 9 at night...

A reader asks:  My 16-year-old daughter is perpetually tired, even though she sleeps well and gets plenty of it. She goes to bed at 9...