I find it very odd that the rest of the comments are sort of... not agreeing with the findings in the article.
I became a father recently (:D) and it's been an emotional rollercoaster for me. I had been frantically Googling my "symptoms" and asking around what's wrong with me, because it seems I've been quite sensitive since the birth of my baby.
One way to explain this is the Gordon Ramsay meme (https://imgflip.com/memetemplate/211147137/Oh-dear-dear-gorg..., LHS = my reaction to my baby, RHS = my reaction to other kids before my baby was born).
I think the article is spot on — the more time you spend with your baby and care for them, the more oxytocin you get and the more your testosterone drops (I cried when my baby first spoke — cooed, really — to me, for example, and that's just one instance).
Edit: I want to take this opportunity to say — fuck companies that don't give paternity leave. This is fucking hard to do alone, so be nice to your employees and offer paternity benefits. I'm in India, where paternity leave isn't required, so I was told to fuck off when I asked for time off.
the problem with most research about humans is that the variance is usually massive. The study could be true on average and that could still leave millions of men who the study doesn't end up applying to.
Maybe its being older already but I don’t feel super changed having a baby like people told me I would. I don’t do work or hobbies or socializing any differently. Everything else in my life didnt suddenly seem unimportant.
The one big difference is up to now I though crying babies were annoying and subconsiously somehow blamed parents. Now I see how foolish that was as babies are born knowing nothing and are just adorable little people trying their best to get their needs met and handle emotions.