Every time I learn about a new claim that getting married makes people happier or healthier or more connected or live longer (and all the rest), I go to the original research report to see what the findings really did say. The media — and sadly, many social scientists — routinely get it wrong. No, getting married does not cause you to become lastingly happier or healthier or better off in any way than if you stayed single (well, you do get more money because of all the laws and practices that benefit married people and discriminate against singles).
Here (below), you can find links to all my critiques of these studies. I’ll keep adding more as new claims hit the media that I need to debunk. I’ve also put together 2 books of my writings explaining why all those Marriage Wins claims are so wrong. Marriage vs. Single Life: How Science and the Media Got It So Wrong includes a chapter previously available only in an expensive edited volume, a new paper that is the most powerful and comprehensive explanation of what the research does and does not show about the implications of getting married, plus 39 other brief chapters (many from my blogs). Because I think that new powerful and comprehensive paper is so important, I have made it into a stand-alone book (together with an introduction) in The Science of Marriage: What We Know That Just Isn’t So. (Both are available both as paperbacks and as ebooks. You can read more about them here.)