What is the proper technique for performing a pec static stretch to improve flexibility and reduce tightness in the chest muscles?

To perform a pec static stretch, stand in a doorway with your arms at a 90-degree angle. Place your forearms on the door frame and gently lean forward until you feel a stretch in your chest muscles. Hold this position for 30 seconds to 1 minute, breathing deeply. Repeat on both sides to improve flexibility and reduce tightness in the chest muscles.