Could neglect lead to destruction?

I know, I know. But what I'm trying to get at is that sometimes we neglect things in order to get something that, at first, seems more beneficial but in the long run, it really is not. Humans tend to look for immediate gratification from things, which, in my first example, would be fashion or style. The consequences, however, would be illnesses and such. Humans tend to neglect things in order to get what they want at that moment, without looking at the consequences.

My question is, do we do this in many other aspects of our lives without realizing it?