Will we still live longer? :/

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 Hello guys, how do you do?
I am a 20 year old male 167 cm (5'5.7 ) and I have been interested in LL for quite a while, but since I don't plan to undergo a surgery anytime soon I never actually considered being part of a forum. Well not until I got this question in my head.

We all know that it is believed that short people live longer. The reason for this has to be a gene that protects us from the effects of ageing, according to a quick Google search. But I was wondering about the heart. The fact that it pumps blood through the veins nonstop 24 hours during the whole life should cause heart tiredness. So by increasing the height, by stretching the muscles, aren't we increasing the amount of work the heart has to do during our lifetime? This should lead to heart problems, shouldn't it?
Don't get me wrong, I would gladly sacrifice a couple of years from my life in order to be 10 cm taller, with a condition that those years are in the old age 

Pardon me if it is a naive question : Not a doctor.
Pardon me if I made any grammar mistakes: Not my first language.

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Hmmm I don't know of any patient who died during LL. But yeah, it's a huge stress and its theoretically possible to die . Anyway I never said I would do it in the old age, that was mostly a joke!

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Well of course i'm gonna think about death when I'm alive, I cant think about it when I'm dead  My question actually was if by performing LL we are reducing our lifespan? But probably this should be the least of worries...

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Uppland, there is not proof, its just common sense. Breaking your bones, creating new tissue and torturing yourself for months will definitely change the way body works. Let alone complications that might rise..