This post makes a significant amount of unsubstantiated claims. While I'll concede that some things are common knowledge, things like drinking a cup of coffee before sleep (with Daniel Pink cited as a source, who is a motivational writer not a scientist) and not making important decisions in the afternoon really need credible sources to be even remotely believable.<p>Any time I see "studies cite" I immediately associate the article with those tabloid pieces about milk being the worst thing you could possibly ingest, only to say the exact opposite in a week or two.