Do you have some tennis balls lying around your home? Dig them out and you can use them to mobilize your upper back, strengthen these hard-to-train muscles and correct poor posture with this novel ...

Tennis balls are featured everywhere from Hollywood fitness routines to global travel gear guides, and it’s not hard to see why. Affordable, durable, and extremely versatile, tennis balls offer ...

Lindsey Ellefson is Lifehacker’s Features Editor. She currently covers study and productivity hacks, as well as household and digital decluttering, and oversees the freelancers on the sex and ...

Most of us spend the majority of the day twisted into some sort of contortion in front of a computer screen, looking down at our phone or curled up on the couch. The hunched back, the rounded ...

Desk jobs often lead to aches and poor posture. Fortunately, simple desk-friendly exercises can combat this. Tricep stretches, shoulder rolls, forward stretches, overhead reaches, and shoulder ...