Scientists are among the biggest liars in this world.
Of course not all, but some, and it's not hard to arrive to that conclusion, since they usually fill in the blanks to arrive to some conclusions.
That's why there tons of "facts" that are discovered, only to be proven wrong some years down the line.
Either is because they are things up as they go along, or things are always changing and nothing is set in stone...but that would take us to a more "esoteric" discussion.
I particularly like the third point about sympathy yawns.
Inc.com, the site in question say "We all know psychopaths lack empathy" when it comes to yawing; psychologytoday.com, on the other hand, say that "contrary to popular belief, a new study from Duke University suggests that contagious/sympathy yawning is not strongly related to variables like empathy"
So, which is it?
I also like to put it out there that, for the last 4 years, i usually go to bed at 5 or 6 am; and before that, when i was working, i never went earlier than 3 am.
Take it as you will....