Gamer posture

So I was deep in a session last night… a good 4 - 5 hours of gaming, sitting at my desk, totally locked in. A bit of OSRS then some Project Zomboid if you must know… 

Zomboid hits a long black loading screen, and I catch my reflection in the dark screen.

Man. I had to do a double-take.

I was in the most cursed position. It was the full, end stage gamer posture. My back was a perfect C shape. 

I chuckled at myself, but also... yikes. It makes me wonder what 20 more years of gaming and sitting like that is going to do to my spine.  

Does anyone else get jump-scared by their own reflection?  And what do you guys do to correct your gamer posture?