When you have an ache in the shoulder or neck muscules or somewhere in between.
Choose a stable & hard platform to lie on*.
Use a towel or a folded soft cloth around the edge.Lie down on your back with your shoulders in line with the edge of the platform. Palms facing down on your chest or beside you. Legs straight.Your neck and head will droop backward and hang from your shoulder.Breath normally maintaining a rhythm.Focus on the pain and the stretch you get through the length of your body. Maintain position for 5 to 10 minutes or as long as you are comfortable. More than 10 minutes is not advisable. Get up with support and be careful not to strain your neck. If possible, hold on to a support or try to turn around and get up sideways.Do this once or twice a day. You'll find your posture improves doing your regular activities.
* You could use your bed if that can provide good lumbar support and the edges of the mattress do not sag on a weight. I use a wooden coffee table extended with a few chairs lined up.
