How can I perform a shoulder stretch with a towel to improve flexibility and reduce tension in my shoulders?

To perform a shoulder stretch with a towel, hold one end of the towel in your right hand and bring your right arm behind your head. Reach your left hand behind your back and grab the other end of the towel. Gently pull the towel with your left hand to stretch your right shoulder. Hold for 15-30 seconds and switch sides. This stretch can help improve flexibility and reduce tension in your shoulders.