It's a little annoying that they're passing off a human interest story as research. It doesn't tell us why the people felt younger (Because of increased exerti

It's a little annoying that they're passing off a human interest story as research. It doesn't tell us why the people felt younger (Because of increased exertion? Because they expected to? Because they were good at acting? Because they were part of an experiment?) or how long the effect lasted, or whether there were any undesirable side-effects. True, the article sends a pleasant message, and there's probably not much harm in it, aside from a possible increase in elderly tripping over bell-bottoms and shag carpet. :)