The pain in the lower left of his back has caused Murray discomfort since late 2011 and is the same injury which required a painkilling injection at last year's French Open.

CNN: Injured Murray to miss French Open?

The bullet went through his stomach and left him with weakened muscles on his right side and chronic back pain.

NPR: Wounded Soldier Fights for Health Benefits

President Kennedy left behind an upholstered rocking chair that he used to alleviate his chronic back pain.

WSJ: In the City's Power Suite

This gave me the ability to find an executive position with flexibility and autonomy, which helped ease the burden of guilt and pain when I first left my baby boy -- and later my baby girl -- to go back to work full time.

CNN: Don't ask for all, ask what makes you happy