Great actually!
I’ll bestow my anecdotally obtained advice! Might not work for everyone
- sit up! They even sell things that detect and yell at you when you have bad posture. Might be an addon for it too? Haha! Also don’t let your neck go forward (also when sleeping!)
- drink plenty of water! And make sure to use the washroom. Don’t hold it in! UTIs burn!
- try to make wrists as straight as possible
- you want to refrain your arms twisting inwards to reach the keyboard. Either use a split keyboard or a gaming mouse/ standard keyboard/game pad combo
- try to make your knees 90 degrees
- get an eye care monitor
- look away from the screen towards a distance at least every hour or so for a minute and get up for a few minutes
- centre of the monitor should be eye level when you are sitting properly (vesa mount perhaps?)
- try to exercise regularly
- stretch!
- edit: massages!
If you have a lot of money to burn:
- try Azeron products
- standing desk to switch between sitting and standing for long sessions. When standing make sure to have dynamic movement
- maybe buy a better chair for your body
- Edit: new mattress perhaps?