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10 Amazing Facts About Twins

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In the past, moments of running across a set of twins was few and far between. Today they are more common than ever before. The twin birth rate in the U.S. is close to one in thirty-one births, almost a 40% increase since the 1980’s. There are a couple of reasons that we have seen this steady increase of multiples over the years.

First, we are seeing mothers having their children later in life. Busy lives due to career or choosing to settle down later in life have led women to put the stork on hold. As people get older, there are hormonal changes that happen within your body. For women, these hormonal changes mean that there body is more likely to release more than one egg at a time during ovulation. Meaning that there’s a chance that both of those eggs could be fertilized.

Another reason is that we have seen an increase of sophistication in the medical field for parents who are not able to have children on their own. Assisted reproductive technology or ART has helped women conceive, but sometimes they get more than they bargained for. In vitro fertilization, which accounts for 99% of assisted reproductive technology, is when the egg is fertilized outside of the body and then placed back in the uterus. Depending on the number of embryos that are placed back into the womb, the likelihood of women having multiple children is anywhere from 20-40%.

Of course, there are genetic factors that contribute in the production of multiple children. There are cases where younger women carry a gene that cause her to hyper-ovulate. More than one egg is released during “that time of the month,” and so multiple eggs can be fertilized. This gene can even be passed on to their young. Circumstances like race, family history of twins, the number of pregnancies a woman has had and even body type additionally play roles in the possibility of giving birth to twins.

If you thought those facts were amazing, then be sure to stick around for this video. Today we are listing ten amazing facts about twins.