Scientific Study Proves That Second Born Children Are Worse Behaved Than First Borns


If you’re the first born in your family, here’s the scientific evidence you need to prove how horrible your younger sibling truly is. Especially if it’s your younger brother. 

A scientific study from the Massachusetts Institute of Technology (MIT) reports that second-born boys are more likely than first-born boys to be quite badly behaved. Titled ‘Birth Order and Delinquency‘ (aka. here’s why you sometimes think your younger siblings should be tossed into the fiery pits of hell), the report claims that second-born boys are 20-40% more likely to have behavioural issues in their lifetime.

The study involved thousands of siblings across Denmark and Florida, and behavioural problems were measured by levels of hyperactivity and conduct by the age of 12-years-old. Findings revealed that second-born boys are more likely to be disciplined in school, and are even more likely to end up in prison than their older siblings. One plus side of being the second born, however, is that they will probably live longer – so there’s your silver lining.

Of course, the researchers at the helm of this study have placed the blame on the parents. According to their findings, the reason why second-born boys are worse behaved than their older siblings is because their parents apparently pay less attention to them:

“We consider differences in parental attention as a potential contributing factor to the gaps in delinquency across the birth order. Second-born children tend to have less maternal attention than do their older siblings because first-born children experience their mother’s maternity leaves and temporarily reduced labour market participation both following their own births as well as following the birth of the second-born.”

Some first born children might disagree with that statement, however …

The study also claims that older children are to blame, so you might want to hit pause on that victory dance for now. Joseph Doyle, one of the researchers from the study, told NPR that one reason why second borns are so badly behaved is because they have pretty terrible role models to learn from – eg. their older siblings:

“The firstborn has role models, who are adults. And the second, later-born children have role models who are slightly irrational 2-year-olds, you know, their older siblings. Both the parental investments are different, and the sibling influences probably contribute to these differences we see in the labour market and what we find in delinquency. It’s just very difficult to separate those two things because they happen at the same time.”

Which means that the youngsters aren’t completely to blame for their hellish ways. Older siblings sometimes don’t make the best role models and, often, they can just be downright mean.

Let us know what you think in the comments!

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