The article says these 6 "tips" are data-driven, yet provides no source or information on why or how the tips actually work. Just that fitness tracker Reddit users "tend to converge on the same set of lifestyle recommendations."<p>For instance, why does eating before bed affect sleep quality? What kind of times are we talking about here? An hour? Two? Five?<p>The rest I anecdotally agree with as I have experienced them. But I've never thought my sleep quality suffered due to eating dinner late. What's the reasoning behind that?