Pars defect 9mm Grade 1 L5-S1 slip, exaggerated spinal curvature, degenerated bulging disc, sciatica left side causing total paralysis, advanced right and left facet syndrome. Can't say everything I've been through the last two years but cycling is the best exercise I do among many other forms of exercise. I can actually walk mostly normal in minimal pain for a few hour after riding.
I do realize cycling is no cure though.