How to fix rounded shoulders according to a physiotherapist

​

https://www.youtube.com/watch?feature=youtu.be&v=YwWER73USCM&fbclid=IwAR0PNaqMeB_cbYyIhoVImeKRd-G8_NUsGVFOoyFbs5WRUq1Mri0u2gApH6c&app=desktop