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...

Light therapy so far seems helpful for my depression, but I’ve noticed that it makes me feel anxious and wound up. Should I adjust...

A reader asks: Light therapy so far seems helpful for my depression, but I've noticed that it makes me feel anxious and wound up. Should...

I am looking into light therapy, not so much because the days are short, but because I work in a place with no windows....

A reader asks: I am looking into light therapy, not so much because the days are short, but because I work in a place with...

Do you have any info on the small, hand-held lighting devices that have recently been marketed? How do they compare with the 10,000 lux...

A reader asks: Do you have any info on the small, hand-held lighting devices that have recently been marketed? How do they compare with the...

I seem to have reverse SAD–every year I get depressed in April and it gets worse until end of summer. I feel my best...

A reader asks: I seem to have reverse SAD--every year I get depressed in April and it gets worse until end of summer. I feel...

Is light therapy safe for the eyes?

A reader asks:  Is light therapy safe for the eyes? Answer: The largest study, for 10,000 lux, 30 min daily exposures for up to 6 winters, was...

I am so grateful for the study that came out in 1998 showing that light therapy works on the backs of the knees as...

A reader asks: I am so grateful for the study that came out in 1998 showing that light therapy works on the backs of the...

About five days ago, I increased the amount of time in front of my light box from 30 to 45 minutes, to try to...

A reader asks: About five days ago, I increased the amount of time in front of my light box from 30 to 45 minutes, to...