This video is even worse than the other comments attest. Almost every “fact” stated here is merely a study in correlations. Not causes. Married people are not necessarily happier because marriage makes people happy; happier people are almost certainly better at marriage. Hugging surely makes people happy, but parent-child hugging might not cause happiness if parents aren’t already happy—it’s just as likely that happier parents tend to hug more but their children’s happiness is genetic, or related to other factors bestowed by happy parents. (Like the benefits of having happy parents, which would tend to make a person a little more happy.) Men might be happier with attractive wives or they might be more likely to attract an attractive wife if they’re happy. Etc. etc.