If someone else is in the room while I am having my light therapy, will it throw off their system?

A reader asks: If someone else is in the room while I am having my light therapy, will it throw off their system? Answer: Probably not, unless...

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...

If I buy a small light box with less lux output, is it simple math to adjust my sessions — for example, half the...

A reader asks:  If I buy a small light box with less lux output, is it simple math to adjust my sessions -- for example,...

There is one brand of light box out there that combines light and ions. Would that be overkill? Could one somehow get “too much...

A reader asks: There is one brand of light box out there that combines light and ions. Would that be overkill? Could one somehow get...

 I used a light box for about 10 days, and ended up experiencing anxiety and irritability, even after cutting back on the time of...

A reader asks:  I used a light box for about 10 days, and ended up experiencing anxiety and irritability, even after cutting back on the...

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...

I have recurrent ocular herpes for which I take Valtrex every day. Are there any concerns that light box therapy can exacerbate it?

A reader asks: I have recurrent ocular herpes for which I take Valtrex every day. Are there any concerns that light box therapy can exacerbate...

Do you agree with the opinion that SAD should be treated simultaneously by light, regularly scheduled exercise and proper diet? …

A reader asks:  Do you agree with the opinion that SAD should be treated simultaneously by light, regularly scheduled exercise and proper diet? Or do...

I am 50 years old and have struggled with insomnia for decades. I can even remember not being able to fall asleep as early...

A reader asks: I am 50 years old and have struggled with insomnia for decades. I can even remember not being able to fall asleep...

 My daughter has been diagnosed with SAD and has purchased a light box which is helping her with waking and sleeping. She is 22...

A reader asks:  My daughter has been diagnosed with SAD and has purchased a light box which is helping her with waking and sleeping. She...