It can sometimes be confusing whether to use heat or cold when treating sore muscles or an injury. Here are facts to keep in mind.

Here's information on how and when to use temperature-related therapies.

When used to treat injuries at home, cryotherapy refers to cold therapy with ice or gel packs that are usually kept in the freezer until needed. These remain one of the simplest, time-tested remedies for managing pain and swelling.

You don't have to exercise for long periods of time—or even vigorously—to become fit. You do need to aim for at least 30 minutes of moderate activity most days of the week.

Sports injuries can be either acute traumatic, which require immediate medical care, or chronic overuse injuries.

Exercise is good for people of all ages. It helps lower blood pressure, reduces the risks for falls and serious injuries, and slows the body's loss of muscle and bone mass.