question: I have a sunken chest cavity which I have had all my life I am 70. My grandson inherited this defect and worries about it he is 16. A schoolmate of his had this corrected and he talks about doing this someday. I never felt my situation hindered any sports etc but he is afraid to get into any physical sports like basketball etc for fear of injury?Is there some way of evaluating if this deformity is limiting him?