Tight hip flexors, especially a deep muscle called the psoas, can silently stress your spine. Here's why this muscle deserves more attention—and how to strengthen it. Lower back pain is often blamed ...

Running is not typically related to higher-than-usual incidences of lower back pain. However, excessive running without sufficient recovery time, improper running form, and other factors may ...

Plus, common mistakes to avoid.

The six-time Mr Olympia put Andrew Huberman through a five-move, 14-set session built entirely around training to failure ...