Keep your shoulders and neck relaxed and tilt your chin

If your shoulders are hunched up near your ears, you need to relax. Hunched shoulders may be linked to holding the phone to your ear or sitting at your computer all day long, absorbing workday stress. If you’re prone to hunching, think about lengthening your shoulder blades, as if they’re dropping down your back, and try to keep them there as you perform the exercise. Strengthening your shoulder stabilizer muscles, such as the mid-upper back and external rotators, improves your ability to keep your shoulders down.

Tilt your chin just enough to fit your closed fist between your chest and your chin. This position lines up the vertebrae of your neck with the rest of your vertebrae. (Because your neck is a continuation of your spine, it should stay in the same general line as the rest of your vertebrae.) So don’t tilt your chin back or drop it toward your chest like you do when you sulk. These two movements strain your neck and place excess pressure on the top vertebrae of your spine.