It sneaks up on you. At 35 I never noticed anything, at 40 yea, pissing every 90 minutes in the morning after coffee and certain days it's just like every 90 minutes all day. I've done a lot of research on it and there's not much accepted science on it. Some people think it's related to emotional issues in middle aged men, so as regular posters on a baseball forum we're all predisposed.