A back spasm involves a sudden, involuntary muscle contraction that can be set off by something as routine as lifting a bag or sitting for too long. Muscle fatigue, dehydration, and nerve irritation ...

Add Yahoo as a preferred source to see more of our stories on Google. Many of us have felt a muscle in some part of our body suddenly and involuntarily tighten, causing a twitch or even severe cramp.

Aging, hormones, and lifestyle changes can all become a back ache cause over time. Get insight into why your back may be ...

If you’re trying to fix that nagging back pain—or more importantly prevent it—try the following strength exercises and lower ...