Have you ever thought how having a twin sibling can impact your life and body in different ways? We are all aware of the fact that when two human beings develop together in one womb there are many similarities, however, a new research reveals that the influences these humans have from conception to birth can have long-term implications for females who have a male twin.
In the womb, twin babies are influenced by several hormones, including testosterone, which science has discovered to be essential for the development and growth of a healthy, fully-functioning body. A groundbreaking new research reveals that being exposed to testosterone, also known as the sex hormone, can have long-lasting implications and adverse effects on female twins.
The pioneering study organized by the Norwegian School of Economics and Northwestern University, which has been published in the Proceedings of the National Academy of Sciences earlier this month, revealed that females who have developed with a male twin in one womb had a much lesser chance to graduate from high school. Moreover, these females twins were also earning lesser money in their 30s as compared to twins who were both females, along with having lower fertility rates, and lack of marital success.
Now, you must be thinking that all these factors are actually influenced by the environmental aspects that the females are exposed to after their birth, right? The researchers accounted for this fact, and thus, they obtained relevant data on female twins who had lost their male twin during the first year of their lives, and the data revealed similar results.
This research was instigated to examine and investigate the hypothesis of “testosterone transfer”, a medical belief that dictates that females who are born with a male twin have had a much greater exposure to testosterone during their time in the womb, which can contribute to various behavioral changes after they are born. The research is supportive of the belief of testosterone transfer between male and female twins, however, the researchers have highlighted that it would not be accurate to generalize these finding to all females with male twins.
Naturally, not all female twins are influenced in the same manner, and possibly, some females with male twins might not be impact at all. The experts reinstated that they have not deduced any findings that ought to influence women to make their fertility decisions since these effects are extremely unlikely to be influenced by any fertility decision that a mother or a couple can make. You see, an individual fertility decision cannot alter such natural phenomena because the twins are only a tiny subset of births, and pairs of male and female twins tend to be extremely rare.
Instead of offering generalize results, this research allows the medical science community to take a detailed look into the possible long-term behavioral impacts and influences that could be triggered from practices such as in-vitro fertilization. As we see more and more women getting pregnant in the later years of their lives, there has been a visible shift in their dependence on fertility treatments, along with a marked increase in the number of twin births. Therefore, this groundbreaking study has much to offer in terms of knowledge and insight.
It is important to note that hormones are a detrimental influence on our bodily and mental health, and sometimes this influence works in negative ways, along with bringing about positive changes as well.