Corrective exercises serve to counteract the bad habits we fall into with regards to posture and movement.  They can relax tight muscles and reactivate lazy ones.  They help resolve chronic injuries and prevent new ones by realigning our spine and keeping joints moving efficiently.

One simple corrective exercise that can be performed anywhere easily is a chin tuck.  It involves pretending your head is on a platter and sliding it backwards, giving yourself a double chin.  You should sit up straight while performing this exercise.  This helps loosen the tight muscles at the base of your skull and regain mobility in the cervical spine that is lost from slouching.  It can be done in sets of 10, 2-3 times a day for less neck pain, shoulder pain, and headaches.