11–15 of 15 posts
E-Readers is wrong. The study used as a "light-emitting" book an iPad (p. 1235). So it is tablets and smartphones. It is not even clear to me if a Kindle Paperwhite would fall into the category.
Interesting, I've been wondering about this myself lately, as I've started to read on an e-book reader ~30 minutes before going to sleep as a part of my routine. Too bad they only used iPads for this study. I wonder if it's better for my sleep to read a "normal" book with the lights on, or if it's better to read with an ereader with the minimum amount of brightness on. I think I receive less blue light with the secon…
The headline doesn't reflect the content: "Although iPads were used in this study, researchers also measured other devices that emit blue light, including eReaders, laptops, cell phones and LED monitors." So, they did a user study using iPads, and only measured the other devices. They then claim the results apply to those other devices. TFA didn't have a link to the paper (as far as I could tell), but it's here: http…
The maximum brightness on an iPad means you can read the screen in broad daylight. I can not see how this level of brightness lends itself to bedtime reading in a dimly lit room.
The title of the article is misleading, as the participants were reading on a tablet, not an e-reader. ( "During the two-week inpatient study, twelve participants read digital books on an iPad for four hours before bedtime each night for five consecutive nights." ) Having used an iPad, a Kindle, and a Kobo, I know from experience that there's a huge difference in the quality and intensity of light emitted by the devi…
It's unfortunate that iOS does not have platform-wide support for adjusting color temperature.
The title could be misleading. It's light-emitting e-readers that affect sleep cycles, especially iPads which they used in the study. That means my sleep shouldn't be distracted significantly just because I read on my non-backlit Kindle.