On: Total darkness at night key to success of breast c...

[carlob]

> however, during the 12 hour dark phase, animals were exposed to extremely dim light at night (melatonin levels are suppressed), roughly equivalent to faint light coming under a door."

If a faint light from under a door is able tu suppress melatonin, does this mean utilities such as f.lux are completely useless?

[jules → carlob]

That would be surprising since ancient humans didn't sleep in total darkness either; they got light from the moon and stars.

[sanoli → jules]

I though the same thing. Anyone who's ever been camping with no other light source other than a full moon will remember how much light (I guess is it's pretty blueish?) the moon puts out.

But, maybe it's not too much, since our eyes are probably very night-adapted when there's no other light source?

[KVFinn → carlob]

>If a faint light from under a door is able tu suppress melatonin, does this mean utilities such as f.lux are completely useless?

I found f.lux only a little helpful -- it wasn't until I added blackout curtains and started wearing blue-blocking glasses at night around the house that I noticed a strong effect.

Glasses are super annoying to wear though.

[lawlessone → carlob]

f.lux probably isn't meant for use while you're actually asleep.

[david_shaw → carlob]

That does seem amazingly sensitive, but still -- if faint light from under the door (partially?) suppresses melatonin, I would imagine that a 27" monitor would do so significantly more.

[carlob → david_shaw]

Yeah, but if we are sensitive to light from under a door with our eyes closed it seems that just changing the hue will have little effect.