https://www.nature.com/articles/519276a
It's less being studious, and more that being studious tends to be correlated with spending time indoors more. It's the spending time indoors that causes it apparently.
It's less being studious, and more that being studious tends to be correlated with spending time indoors more. It's the spending time indoors that causes it apparently.
Not quite. It’s the lack of spending time outdoors.
Plenty of studies for that, too.
(not strictly for "outside" though, you can also look out of the window regulary, it is so that your eyes refocus and relax )