In my case, weak core muscles directly contribute to my sciatica. When I throw out my back, I'm in excruciating pain with a lot of weakness and numbness. It's completely incapacitating. If I want to avoid more episodes, I need to strengthen my core and lose weight. If I can build some muscles on top of that, that's not bad. It also makes me feel good and objectively look better. I don't see a downside though it can be boring. Thankfully cannabis and dope music are fully legal in California so I get by.