That night, James climbed into bed, his whole body weary. It seemed that all the lack of activity caught up to him in almost the same way that doing a whole lot of things did. He couldn't remember feeling this tired when he was working, exercising, doing things around the house, and everything else that ordinarily came with everyday life. Now he was doing next to nothing: watching TV, going for drives, taking the occasional work call, and his, well, extracurricular activities with Molly. And yet he was as sleepy as he could remember.

James opened up his iPad and let himself get lost in the Internet. He checked on...