A nice & quick stretch that you can do to help improve your posture and release those tight muscles that are causing your rounded shoulders and hunched upper back. Upper cross posture is extremely common and caused by the way we sit and stand, and is commonly seen in people with desk jobs. Our posterior neck muscles and pecs become tight, whilst the neck flexors and mid-lower traps and rhomboids become weak.
The exercise doesn't take long (15-20 seconds), therefore you have no excuse not to do it.
This is most beneficial to those with bad posture or have desk jobs. As well as helping improve your posture it can help eradicate upper body & neck pain, plus help combat cervicogenic headaches (which are posture /muscle related).