I know that this may come across as sounding vaguely "trollish" but I'm serious.
I've suffered from low back pain since I was a teenager (in my sixties now). It's really the only thing that hasn't improved regarding my health since I started Starting Strength in 2015. It hasn't made it worse though. My pain is always worse in the morning and is bad enough that I often have to take ibuprofen before working out in the AM. This is particularly a problem with squatting.
What I've noticed though is that a cup of black (non-decaf) coffee undeniably makes my pain better before lifting. I can't believe it's just placebo because I've never had a preconception that this would help. I've always drank coffee but never first thing in the morning. Now it's pretty much my norm for the past few weeks.
Has anyone else ever noticed this? I know that The Instapundit is fond of asking "Coffee, is there anything it can't do?" Frankly I've NEVER thought of it as an analgesic before. Would there be any adverse effects of coffee for working out? I think I recall Paul Horn telling me he was okay with it.