Can I use a light box while lying on my stomach?

A reader asks: My ideal position for light therapy, as I am waking up, would be to use the lamp while reading a book while...

I am traveling to a time zone that is 12 hours ahead. I will be in that time zone for 12 days (traveling east...

A reader asks:  I am traveling to a time zone that is 12 hours ahead. I will be in that time zone for 12 days...

I am 34 years old and have a long history of difficulty sleeping. My doctor diagnosed me with delayed sleep phase disorder (DSPD). It...

A reader asks:  I am 34 years old and have a long history of difficulty sleeping. My doctor diagnosed me with delayed sleep phase disorder...

What is Delayed Sleep Phase Syndrome (DSPS)?

A reader asks: What is Delayed Sleep Phase Syndrome (DSPS)? Answer: DSPS is a circadian rhythm disorder in which the internal body clock is synchronized abnormally late...

I have just been diagnosed with delayed sleep phase. My body clock tries to make me sleep from 2 a.m. until 10 a.m., but...

A reader asks:  I have just been diagnosed with delayed sleep phase. My body clock tries to make me sleep from 2 a.m. until 10...

I think I have delayed sleep phase syndrome (DSPS). I took the Automated Morningness-Eveningness Questionnaire and got some interesting suggestions I’d like to try....

A reader asks:  I think I have delayed sleep phase syndrome (DSPS). I took the Automated Morningness-Eveningness Questionnaire and got some interesting suggestions I'd like...

Is it true that for society in general, people have a mind of their own by disrespecting or not taking account of their circadian...

A reader asks:  Is it true that for society in general, people have a mind of their own by disrespecting or not taking account of...

Do most people respond to light therapy even at the “right time” for phase advances or delays? Does it need to be done at...

A reader asks:  Do most people respond to light therapy even at the "right time" for phase advances or delays? Does it need to be...

I am considering using a light box to adjust my circadian rhythm, which is now severely delayed. …

A reader asks: I am considering using a light box to adjust my circadian rhythm, which is now severely delayed. I live in an apartment...

What is delayed sleep phase disorder (DSPD)?

A reader asks:  What is delayed sleep phase disorder (DSPD)? Answer: DSPD is a circadian rhythm disorder in which the internal body clock is synchronized abnormally late...