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.

Now when you're up here, focus on squeezing your upper back muscles, the ones in between your shoulder blades. Your feet should be right about shoulder width apart. We're going to do these ...

The back muscles are used in almost every movement — from walking to pushing a shopping cart at the grocery store to lifting a suitcase into a car — which is why keeping your back in tip-top ...

You might not think about your back muscles often, but they do a lot to support your upper body. A regular back-strengthening routine can ease fatigue and stiffness while also improving mobility.

While you should definitely consult your doctor if you’re struggling with long-term lower back pain, research has found that strengthening certain muscles can prevent and alleviate lower back pain.