I once met an old journalist that ran a bed and breakfast in southern Ontario. Great guy who worked for the Toronto Star for several years in the 60s and 70s.
He said that work was a lot more hectic back then because everything was manual and you had constant deadlines with no conveniences. He said that his day started at about 5 or 6 and depending on how busy the day was, he'd be in bed by 2 or 3 or not at all to make a deadline.
He said he drank coffee but at one point drinking so much liquid was forcing them to go to the bathroom so much that he and a few others opted to start just eating the coffee beans instead. They got the caffeine kick without wanting to pee.
He suffered a massive heart attack in his 50s, slowed down after, quit eating coffee beans and retired in his 60s.