Does exercise speed up aging? read first?

[Madeus]

I heard something about exercise helping cells get what they need faster by increasing blood flow, and since some scientists say our cells can only multiply a certain number of times, would exercise speed up a cells life cycle? kinda like a light bulb burning brighter but lasting shorter time(exercising), compared to a light bulb that last longer but doesn't burn as bright(not doing exercise),, am I wrong or right? Im open to all answers as i have no clue,thanks