A PNF stretch, or Proprioceptive Neuromuscular Facilitation, is a stretching technique that involves alternating cycles of muscle contraction and relaxation to improve flexibility and promote muscle relaxation or release. Performing a trap-centric PNF stretch daily can soften tension and ease aches and pains in the shoulders. This type of stretch works by combining muscle activation and subsequent relaxation, which reduces tightness and promotes a deeper stretch. Massage therapist Rachel Pantano recommends this stretch for anyone experiencing upper trap tightness or chronic neck and shoulder pain.