Forced Induction and Engine Wear

[taracor]

I've been wondering if adding an aftermarket supercharger or turbo charger will have any detrimental effects on the engine. I know that it puts more stress on the engine, but will this decrease the engine's lifespan? Also, is there anything in terms of tuning that can be done to a boosted engine too increase/preserve longevity? I don't know much at all about forced induction, so I figured I'd ask and try to learn something.