How does one choose whether to use light therapy, negative air ionization or dawn simulation for SAD? If one version of light therapy does...

A reader asks:  How does one choose whether to use light therapy, negative air ionization or dawn simulation for SAD? If one version of light...

 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...

My ideal timing for light therapy, according to your Automated Morningness-Eveningness Questionnaire, is 6:45 a.m. Now, in my country, daylight starts sooner than that...

A reader asks: My ideal timing for light therapy, according to your Automated Morningness-Eveningness Questionnaire, is 6:45 a.m. Now, in my country, daylight starts sooner...

What happens if you do light therapy too early? I have one day a week when I have to leave for work before my...

A reader asks: What happens if you do light therapy too early? I have one day a week when I have to leave for work...

My husband and I practice natural family planning using the sympto-thermal method. Charting my waking temperature at the same time each day is important...

A reader asks:  My husband and I practice natural family planning using the sympto-thermal method. Charting my waking temperature at the same time each day...

 I have recently been diagnosed with SAD and am about to purchase a light box. Both Medicaid and Medicare have refused to contribute toward...

A reader asks:  I have recently been diagnosed with SAD and am about to purchase a light box. Both Medicaid and Medicare have refused to...

For a long time now I have realized that I am not able to remain active at all without natural light. As long as...

A reader asks: For a long time now I have realized that I am not able to remain active at all without natural light. As...

What does happen if you use light too early? Once in a while? Regularly?

A reader asks: What happens if you use light too early? Once in a while? Regularly? Answer: Light Exposure & Circadian Clock Resetting A primary effect of light...

Living in upper New York State with low winter daylight, I wonder if flooding the house with overhead bright light to simulate overhead sunshine...

A reader asks: Living in upper New York State with low winter daylight, I wonder if flooding the house with overhead bright light to simulate...

My husband has been diagnosed with SAD. His doctor told us it is okay to purchase a light box for therapy. He has some...

A reader asks:  My husband has been diagnosed with SAD. His doctor told us it is okay to purchase a light box for therapy. He...