I was in a situation where I had back pain and had difficulty sleeping.
I have never been injured, but I kept feeling pain in my upper back as if I had a cramp.
Getting acupuncture at the Korean medicine clinic didn't seem to help at all.
A colleague told me that receiving chiropractic treatment would be effective, so I went to a hospital near my workplace.
After receiving treatment about 2 to 3 times, my body felt much lighter and the pain disappeared.
Poor posture causes muscles to tense and shorten, leading to pain.
I realized once again how important good posture really is.