For many people of a certain age, high school gym class began with reaching for their toes. Then, over the years, we were told it was better to stretch after exercise. It turns out, both those things ...

Why should we stretch at all? According to personal trainer Desiree Lethaus, stretching has a range of benefits for the body, including better posture, improved flexibility, and better mobility.

There are tons of different stretching exercises—you can stretch the whole body, or just focus on specific areas like the legs or hips. There are also static and dynamic stretches. The choice between ...