What stops you from sinning in heaven?

[kılıç_mehmet]

I was just wondering, from a Christian point of view, what stops the Christian from sinning in heaven? Do you not have free will anymore when you get there? (I'm assuming of course that no one in heaven will ever sin which is what I think most Christians think)

I think I remember from my days as a Christian learning about how Christians will get a "new body" in the afterlife. Is this what keeps you from sinning in heaven? If so, this would seem to imply that it's our current bodies that causes us to sin. Assuming this is true, it seems that it would have been better for God to give all men better bodies.

Also, what sort of body did Adam and Eve sport? Was it the same sort of body that Christians get in the afterlife? Assuming that it was not the same body as in heaven, and assuming that the new body prevents one from sinning, why did not God simply give Adam and Eve the new better body?

But in any case, assuming that no one in heaven will ever sin, what stops a person from sinning in heaven?

Mind you, Adam and Eve were not in heaven when they were created, they were in the Garden of Eden, a different place than "heaven".
And their sin was to disobey. They also had physical bodies, they had to eat and drink and breathe. They were humans in the physical sense.

In heaven, there obviously will be no need to "sin", but I think from Revelations, a thousand years of peace will reign, and then, the peoples of heaven will be put under a final test. Whosoever passes this one, will be "near God". I guess the euphoria of what it means to be near, or close to God should be so unimaginably high, that no one would ever have the need to sin. I'd imagine it as being better than scoring with the finest woman ever, or eating the best kebab, or drinking the finest of wines, or doing the most potent of drugs, or all at the same time.
In short, your ego would be filled in excess, so that you would want nothing more than to be close to God, in heaven.
For what kind of bodies people will have in heaven...Well, as God has used his own soul to fuel the human body, I guess that everyone will resemble the manifestation of God a little bit. Who knows what God looks like, or if our souls take the shape of our worldly bodies. But I guess one can only know after getting there.