Do people subconsciously know when they're going to die?

I was listening to last night's C2C show and some woman called in while Joseph Jacobs (psychic guy) was on and she asked him "Do you think that people sense or know when they are going to die?" The way I understood the question was, do people - if they are going to die soon - have a sense of it?

JJ said he didn't think so. He said there are some days that are so bad that he wishes he would die, but overall, no, people don't have a sense of that.

I thought the question was interesting because I often think that I'm going to die soon-ish. I don't have any life-threatening illnesses (that I know of), I believe I am very healthy, but sometimes I just think that I am going to die early or soon or unexpectedly (as opposed to people who die of lingering illnesses).

So, what do you guys think? Do you think that people know or have an idea that they're going to die soon before they die? I think I'm speaking more of people who die suddenly -like car crashes....