"Problems with relief" joke

There were 80 year olds and they were sharing their problems

The first one said "I got a big problem, I cant piss"

The others agreed that this was bad but the second one said "I got a bigger problem, I cant take a shit"

The others agreed that this was a bigger problem and then the third one said

"I've got the biggest problem, I piss every morning at 6:30am and I take a shit at 6:45am"

The others ask whats the problem?

The third ones says "I don't get up until 7am"