Javascript is not enabled. This site can still works but it'll be more interactive when javascript is enabled.
loading...
Hacker News
new
|
past
|
comments
|
ask
|
show
|
jobs
|
submit
zhengyi13
5 hours ago
|
on: Sleep regularity is a stronger predictor of mortality risk than sleep duration (2023)
I believe it's much to do with blue light emitted by screens:
https://pmc.ncbi.nlm.nih.gov/articles/PMC9424753/
reply