That’s what this article in the LA Times tech blog says, and on pretty good authority too.
Evidently light emitting devices like a cellphone or the iPad can cause the inhibition of the body’s secretion of melatonin, which is what puts your body to sleep.
Because users hold those devices so close to their face, staring directly into the light, the effect is amplified compared with, say, a TV across the room or a bedside lamp, said Frisca Yan-Go, director of the UCLA Sleep Disorders Center in Santa Monica. …
“The take-home lesson is that insomnia and electronics gadgets emitting light should not [be] mixed before bedtime,” UCLA Neurology Clinic Director Alon Avidan, also an associate professor at the university, wrote in an e-mail. However, “Kindle is better for your sleep,” he wrote in another e-mail.
Some say e-ink is easier on the eyes than the screen on a computer
(tablet or otherwise). However, the
Wall Street Journal published a report this month to the contrary.
…Really? where is the ‘real’ evidence?
I have to say that I am usually in fron of my computer untill just before going to bed: for what is worth, if you are tired, you sleep, but maybe I am a lucky one?