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...

How do the lights work?

A reader asks: How do the lights work? Answer: Scientists are still investigating the precise mechanism that makes light therapy effective. Thus far, we believe that bright...

I suffer from panic disorder. I used a light box for four days for 30 minutes starting at 6:30 a.m. On the fourth day...

A reader asks: I suffer from panic disorder. I used a light box for four days for 30 minutes starting at 6:30 a.m. On the...

I used to be a night owl only — I could not fall asleep until 1-2 a.m. and then always had trouble getting up...

A reader asks: I used to be a night owl only -- I could not fall asleep until 1-2 a.m. and then always had trouble...

Why am I so tired in the morning during the winter months?

A reader asks: Why am I so tired in the morning during the winter months? Answer: Our internal biological clock--which strongly influences our daily patterns of alertness...

I have suffered from delayed sleep phase syndrome since I was a little girl. I am now 46 and suddenly too old to live...

A reader asks:  I have suffered from delayed sleep phase syndrome since I was a little girl. I am now 46 and suddenly too old...

I started using a 10,000 lux light box last fall with dramatically positive results. …

A reader asks:  I started using a 10,000 lux light box last fall with dramatically positive results. Because I felt better during the winter with...