The spine is a highly complex structure, and injury mechanisms are by no means straightforward.
Watch your weak points like you stock portfolio or risk zero return on your investment for joint health through exercise.
Biceps don't get much isolation time in functional fitness workouts but it's cool to show them some love. Nothing wrong with well-developed arms and they do look good, there's always that.
Lack of mobility can spell the difference between a miss and a big new PR.
What was final straw that made me turn my back on the king of strength exercises?
I know stretching your lumbar spine feels good. But you are actually making your pain worse.