Harvard doctors reveal a direct link between excruciating back pain (or sciatica) and this little-known muscle.
Can you guess what it is?
You probably won't get it right, even if you're a total health nut.
The answer is counter-intuitive.
Click here to jump straight to the answer.
P.S.According to a world-renowned back pain expert, Emily Lark, stretching this little-known muscle is KEY to relieving sciatic nerve and eliminating unbearable, annoying back pain that never seems to go away.
to discover what it is and a simple 30-second method to stretch this muscle
you can try at home today