they have warned their patients of the dangers of smoking and completely ignore the attitude (guilt for being a hypocrite and endangering their own lives) and the behavior (smoking) and be a smoker without thinking anything wrong or good about it.
One example of cognitive dissonance that happened to me is the first and only time I cheated on a test back in high school.
I needed to pass an exam because I was out sick for a month and my grade was low. A student was selling the test answers for five dollars and I bought one. When I took the test, I was felt guilty for cheating. My attitude was that cheating was wrong yet my behavior was that I was cheating on my test. I choose to fix my attitude on the grounds of that I REALLY needed to pass the test with flying colors and I felt that studying wasn 't going to cut it. It turns out that the test answers were from the wrong test and everyone who bought the answers, like me, failed. Luckily the teacher hated the turn out so much that she allowed everyone to retake it. I got a 95% on my own. I never cheated
again.
Someone from another country such as Iran would handle a cognitive dissonance differently. Let’s say that this person is a homosexual. He is faced with the attitude of his people that homosexuality is wrong and shameful (and in some places, is worth execution) and his behavior which is falling in love with another man. He will most likely choose the attitude of his people and live a heterosexual life; happy that he and his family will be accepted by society. An open American homosexual will be confused of why the man is still happy even though he will never be emotionally and sexually happy like him.
References
Visualizing Psychology, Siri Carpenter, Karen Huffman 2010