To the OP question posed in the title...
I would say that my motorcycle is actually extending my life...I feel more alive when on the bike than when off. More attuned to the pleasures of this world than when off. More mingled with the varying moods when varying weather hits during a trip. In short...more alive and aware.
Because of this, I am also more aware of the lack of care other fellow commuters travel with...they care less about my well being than what I consider a bare minimum. Since during MY commute, I am unable to ride to work in a way that keeps a sufficient buffer with those others that do not care whether I arrive safely ot not...I choose to commute in a car, and vacation by FJR.
I would love to commute by FJR, but I hate broken bones, vertebrae, or having my insides explored by medical professionals...or anyone else for that matter. Therefore, I reserve my riding for the lonely road...the road that allows my mind to wander, to think of big things, to think of small things. Then in the sporty sections, to engage all my senses in a rush of riding the curves and the hills...
No...my motorcycle is not killing me. Even if my days end on some lonesome road experiencing life...