How to study longer

No.11230322 ViewReplyOriginalReport
Ok so I have finals and I need to study for hours on end you guys seem smart so here’s a few questions
How do you keep your neck from hurting?(most of my work is don’t off my laptop)
I can only study for like 4 hours before I have to take 1-2hour break how fix?
What quiet snacks should I get (in library)?

Also just any advice you have