Blood takes 23 seconds to circulate throughout the body.
I went and saw "23" with Jim Carrey tonight. It was good, and I highly recommend it, but I would say not to go and see it with anyone that reminds you of the main character. Just watch the previews, and if your male friend starts looking suspiciously like Jim Carrey in this movie, don't take them with you. It'll just creep you out.
I say this because Cj and I have both been talking about how he has some of the traits of this character. Then I went and saw the movie with my parents, and I honestly don't know why, but I was really glad Cj hadn't seen it too.