I had been working primarily remote (1-2 days in office for 6) alternating between standing and sitting in my recliner. Switched jobs where I was expected in office 5 days a week for 8+ hours. Friday night the first week I was there I tore a disc in my back. It wasn't until I left and took some time off that it fully healed and allowed me to strengthen my core.

Needless to say my current job is heavy remote with flexible time in the office that I took over a higher paying position.