If you have sprained a wrist, pulled your back, or twisted an ankle before, you've likely heard of the age-old R.I.C.E. protocol— rest, ice, compression, and elevation. And while painkillers can help ...

You twisted your ankle during a run. Or you woke up with a tight neck after hours of desk work. In that moment of pain, the question arises: Should you ice it, or heat it? The answer depends not on ...