While seated in an upright position, place the fingertips behind the neck. Look straight ahead while maintaining a neutral spine, meaning that the natural curves of the spinal column are in place ...

All you need is a chair ...

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. If ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. It’s easy to almost ...