We are evolving/mutating and we should not be thinking like we were thinking a hundred years ago.
The real problem here, as I see it, is the media that propagate basic ideas too quickly. The media will take a statistical study and expand it as truth and we all fall for it.
>>> “About a decade ago, Fu discovered the first human gene linked to natural short sleep; people who had a rare genetic mutation seemed to get the same benefits from six hours of sleep a night as those without the mutation got from eight hours.”