patients – n. people who receive medical care or treatment
stretch – v. to move your muscles in a way that makes them long and tight
swing – v. to move with a smooth, curving motion
reflexes – n. actions or movements of the body that happen automatically as a reaction to something
hit bottom– v. expression reach the lowest possible level or point
degenerative - adj. medical causing the body or part of the body to become weaker or less able to function as time passes