forward flexion stretch for the back of the neck

To perform the stretch, start a neutral position with hands by your side

Without moving the shoulders, tilt your head forward by bringing the chin to the chest

Flex the neck forward as far as you can without any pain or significant discomfort.

To increase the deepness of the stretch, you can put your hands on the back of the head.
Do not use the hands to pull your neck forward. Instead, relax the muscles – the stretch should be slightly deeper from the additional weight of the hands.