Without realizing it, many of us start our day by stretching before we even get out of bed. Involuntary stretching of your muscles is called pandiculation. It’s a behavior seen in most types of ...

Stretching is an essential part of almost every workout — especially running. Even going on a short jog works your muscles, and many doctors recommend stretching both before and after exercise.

Proprioceptive neuromuscular facilitation (PNF) is a form of assisted stretching. It combines passive stretching with muscle contraction. First, your partner applies force to stretch your muscle ...

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. Flexibility is an ...