Tight hip flexors, especially a deep muscle called the psoas, can silently stress your spine. Here's why this muscle deserves ...

Child's pose Why it helps: Child's pose opens up the chest, major muscles ... low back pain. Quick tip: People often shift their hips too far forward to properly stretch the psoas.

The iliacus is a key part of the larger and better-known hip flexor (the other main muscle being the psoas). Together ... you may begin to experience back pain in the long term too.