Is the winter in the south not conducive to frozen shoulder?

The winter in the south is relatively humid and cold, which is indeed not conducive to frozen shoulder! The cause of frozen shoulder is cold shoulder, especially the habit of putting your arms outside the quilt when sleeping, which is most likely to cause cold shoulder. You can buy a cotton vest specifically designed to protect your shoulders online and wear it when sleeping at night. It can also be worn under clothes during the day and the effect is very good.