Originally posted by: NanoStuff
Originally posted by: Nutdotnet
No it wouldn't.
Got proof? Post up.
If you don't, I suggest going back in your hole.
It's your life

I'm not the one who should be convincing you to take measures to live longer, I really don't care. I say this because I don't keep track of every single thing I read, so I couldn't possibly provide you with the same proof that I've become familiar with. I could certainly give you a start, but it would take hours of searching.
In conclusion, if you care about your longevity, you will find this proof on your own. It's really not that bad taking a day off to research if it means 20 more years to your life. Alternatively you can just take my word for it and save yourself the trouble, but if you disagree, by all means do yourself the favor and research.
The issue goes beyond body mass and caloric intake. Too much cardio workout will leave you with an enlarged heart, which is good for endurance, essential to many sports, unfortunately the advantage goes against your favor later in life. A larger heart will greatly increase your chance of cardiovascular complications as you age. Then there's also the issue of autoimmune diseases. Continuous stress on the joints greatly increases your chance of developing rheumatoid arthritis, which is not only debilitating, but also will shorten your life by some 10-20 years, depending on severity and when you get it.