Physical therapy exercises for the neck help by improving flexibility, reducing muscle tension, and strengthening the muscles supporting the cervical spine. These exercises increase mobility, alleviate pain from stiffness or poor posture, and enhance blood flow to promote healing. Strengthening the neck muscles also helps stabilize the spine, preventing future strain or injury. Additionally, these exercises correct posture-related issues, reduce headaches, and relieve discomfort associated with conditions like neck pain, whiplash, or tension-related stress.