Tuesday, June 19, 2018

Even after a good night’s sleep, I have trouble waking and getting out of bed in the dark, yet, regardless of the hour I...

A reader asks:  Even after a good night's sleep, I have trouble waking and getting out of bed in the dark, yet, regardless of the...

My 16-year-old daughter is perpetually tired, even though she sleeps well and gets plenty of it. She goes to bed at 9 at night...

A reader asks:  My 16-year-old daughter is perpetually tired, even though she sleeps well and gets plenty of it. She goes to bed at 9...

What is known about the effect of electromagnetic radiation (EMR) from sitting so close to a light box? …

A reader asks: What is known about the effect of electromagnetic radiation (EMR) from sitting so close to a light box? I have noticed some...

I’m using a light box (10,000 lux) for 30 minutes at 7:30 each morning for depression and to help me get up at a...

A reader asks:  I'm using a light box (10,000 lux) for 30 minutes at 7:30 each morning for depression and to help me get up...

I am ready to purchase a 10,000 lux light box, but am still confused about wavelength vs. degrees Kelvin (K) and full- vs. broad-spectrum...

A reader asks:  I am ready to purchase a 10,000 lux light box, but am still confused about wavelength vs. degrees Kelvin (K) and full-...

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...

Exactly how far from a 10,000 lux light box should I sit, and where should I place it? It is 2-feet wide and 1-foot...

A reader asks:  Exactly how far from a 10,000 lux light box should I sit, and where should I place it? It is 2-feet wide...

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...

I take a low dose birth control pill and have been advised to stay out of the sun to avoid brown marks (“mask of...

A reader asks: I take a low dose birth control pill and have been advised to stay out of the sun to avoid brown marks...

I am confused. A recent q&a item said that color temperature and spectral output matter. I understood your previous answers to suggest they did...

A reader asks: I am confused. A recent Ask the Experts answer said that color temperature and spectral output matter. I understood your previous answers...