Why are we resistant to warnings? Well, if you think about animals, when you induce fear in an animal, the most common response you will see is freezing or fleeing; fighting, not as much. And so, humans are the same. So if something scares us, we tend to shut down and we try to eliminate the negative feelings. So, we might use rationalizations. For example, you might tell yourself: "My grandpa smoked. He lived to be 90. So, I have really good genes and absolutely nothing to worry about." And this process can actually make you feel more resilient