this post was submitted on 19 May 2025
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2meirl4meirl

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[–] vaguerant@fedia.io 37 points 1 day ago (2 children)

If it helps, the science of phone screens disrupting sleep patterns is sketchy at best.

To test the theory, BYU psychology professor Chad Jensen and researchers from the Cincinnati Children’s Hospital Medical Center compared the sleep outcomes of individuals in three categories: those who used their phone at night with the Night Shift function turned on, those who used their phone at night without Night Shift and those who did not use a smartphone before bed at all.

“In the whole sample, there were no differences across the three groups,” Jensen said. “Night Shift is not superior to using your phone without Night Shift or even using no phone at all.”

[–] alsimoneau@lemmy.ca 6 points 23 hours ago (1 children)

Actually they found higher sleep quality in some groups.

The article also doesn't mention how long the study was and only looked at 18-24 years old.

The main issue with light exposure are long term effects, such as increased rush of hormone-depebdant cancers.

We don't have a lot of long term study, but we know melatonin production is affected.

For the record, I did my PhD on light pollution, and while not a health expert, I have assisted to multiple talks at scientific conferences on the subject.

[–] Machinist@lemmy.world 1 points 1 minute ago

Can you talk more about melatonin, hormone dependent cancers, and light exposure? Also, what about shift work and rotating schedules?

[–] surewhynotlem@lemmy.world 2 points 21 hours ago

I use my phone 16 hours a day, and sleep wonderfully the other 8 (when my kids let me, which is never)

Oblig. "My anecdote is not evidence"