There are two things I know to be true. One, I love a challenge. (Perhaps you remember my daily plank practice?) And two, I hate failing. When the opportunity to partake in a flexibility challenge ...

Different types of stretches affect your physical body in different ways, encouraging flexibility and mobility. Here's what ...

I'm always working on a side quest, from getting certified in an obscure professional trade (airbrush tanning) to developing a new skill (just because I live in Manhattan doesn't mean I can't learn to ...

Because your muscles control joint movement, tight muscles can naturally cause joints to become stiff. Stretching first thing ...

Lie faceup in a reverse tabletop position with your hips and knees bent 90 degrees. Place a yoga block or Pilates ball ...

Aging may affect a person’s mobility, and routine stretching can play an important role in healthy aging and quality of life. As a person grows older, motions such as getting out of a chair or walking ...

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 ...