AddAIn my case I was diagnosed by my M.D. 8 years ago with shoulder impingement. He recommended a simple stretch that worked. I did the same simple stretch of and on for 8 years to prevent and treat the pain. Then that stretch stopped working. My pain level was getting worse. I was at 3 to 4 on the pain scale and I had trouble sleeping.
So I did some research on "Shoulder pain". Turns out a book written by John M. Kirsch, M.D., an Orthopedic Surgeon recommends hanging from a pull up bar. Lots of physical therapists recommend the
Dr Kirsch method.
This video at 6:30 shows the method-https://www.youtube.com/watch?v=bI9KZVdFSmQ&t=21s
After a month or so it's really working. My pain level now is at a 1 and no trouble sleeping!
Not affiliated in any way. Hope this info can help.
https://youtu.be/bI9KZVdFSmQ