Do you think that a person should change his or her lifestyle after marriage?

Lifestyle, as in ?
Shaadi, Hmm yes but it's not that we have to change ourself, the change comes itself, thats how things work out. you make compromises, make changes for other person, the other person does the same. thats how this relationship works.
For example, If a girl finds out that her husband is a smoker, she wud want him to leave smoking coz thats where she can't compromise, so the guy wud leave smoking or make it less for sake of his wife.
And then if the guy finds outs something that he doesn't like in the girl, he wud ask her to change.. so in short this is how life goes on.
BUT if you talk about our society then unfortunately, the girl has to change herself not only for the man but for his whole family, she is expected to do that, no matter how mental torture she has to go through, we actually forget that one can be flexible but cant change entirely.

Well that totally depends on the lifestyle of your spouse... if he/she is from a middle class family and you from rich one and fond of living a luxurious lifestyle... den instead imposing ur luxurious lifestyle on ur spouse, one should compromise and live a lifestyle of your spouse... that would be the best thing to do to be a happy couple...!!
=)

I will love to answer it no but in real life, both guy and girl need to change their lifestyles. Like their daily routines get different, they get more responsible and caring about family etc. But that doesn't mean one need to alter himself completely, just mutual compromises on the way are important.

SHOULD change is not the right question .. they change to life ... coz the life changes ..more responsibilities more maturity etc ... they mutually adjust their life from bachelor hood to married person ... !

Three things regarding your question: Do you think that a person should change his or her lifestyle after marriage?
1) 'Should'? --> I totally agree with Osama here. It is not about if one 'should' or not. Rather, it is something which just happens - knowingly or unknowingly, intentionally or unintentionally, willingly or unwillingly. Apart from that, it only shows your willingness to make a relationship work and how much people involved in this matter to you. If you are convinced and stubborn that you are 'perfect' in the way you think, act and the lifestyle you follow, then it also to some extent shows what kind of person you are.
2) Change? --> As I have said this on several occasions, change is an on-going process. We keep developing ourselves and thus 'changing' in one way or the other.
3) Lifestyle? --> As Faiq has pointed out, the question here is what kind of lifestyle are we talking about? Is yours totally different than your spouse's? Marriage is more about getting to know your partner better and with this comes trying to find out and to discover what kind of lifestyle s/he used to have and how much of it can be adapted and merged in your 'new married life'.