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7 Facts about Twins You Probably Didn’t Know

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7 Facts about Twins You Probably Didn’t Know

Pregnancy is a wonderful blessing. Being able to create a life is already an interesting facet of life. What more, when you have twins? It doubles the love and doubles the fun!

Today’s technology makes it a little easier for women to conceive than ever. Women who undergo fertility treatments such as ovulation-inducing medications or fertility drugs and assisted reproductive technology such as In Vitro Fertilization (IVF) are more likely to conceive twins or multiples. Almost 1 in every 30 pregnancies results in twins or multiples.

You may be seeing more twins or multiples today than ever before. You may be wondering what other things they share and their differences. You think you already know what to expect when expecting twins, only to be amazed by these interesting facts. If you didn’t know already, here are some interesting truths about twins.

1. Each twin has unique fingerprints

Identical twins may have the same physical features, but they do not have the same fingerprints. They are still individually unique. Although they share a womb and almost the same DNA, their individual fingerprints start to develop from 6 through 13 weeks of gestation.

2. Twins may have individually different genetic makeup

If you didn’t know already, identical twins are derived from a single fertilized ovum that comprises one set of genetic material or genome. Although this is the case, identical twins have the potential to have different genetic makeup. One twin has a possibility of having a different copy of each gene the other twin has.

3. Tall women have a higher chance of conceiving twins

According to studies, taller women carry more IGF or insulin-like growth factor. This is a type of protein that the liver produces as a reaction to the growth-stimulating hormones present in the shank of long bones.

IGF increases the ovaries’ sensitivity. This means, taller women have a higher number of IGF, which results in a higher probability of taller women to ovulate and a higher chance of conceiving twins.

4. Women who consume more dairy products have a higher chance of conceiving twins

According to a study about reproductive medicine, those who consume more dairy have a higher chance of conceiving multiples or twins. The study was derived from the result of the comparison between non-vegan and vegan moms. Those women who consume more dairy products are highly likely to conceive twins.

IGF is still the main reason why this is possible. The same protein can be found in cows, as a reaction to the growth hormone released in their blood and milk that women ingest in dairy products.

5. It is possible for twins to have different biological fathers

There have been many reports of incidents where pregnant women conceived and deliver twins with different biological fathers. Usually, a woman produces only one egg per month, but in some cases, two eggs are released. And normally, a sperm can live in the reproductive tract for 5 days.

If the mother’s ovaries release two eggs and she had sex with two men in 5 days, each of the man’s sperm can fertilize each egg that results in two babies - one baby for each dad.

6. Identical twins can have opposite asymmetric features or most commonly known as a mirror image

A mirror image is a duplicated reflection of an image but in reverse direction or what we call, asymmetric. Almost 25% of identical twins grow in the womb face to face. This means they become exact images or reflections of one another. For example, one may have a birthmark on the right side of the body while the other on the left. It could be one twin is a righty while the other is a lefty.

If you have twins in the family, ask or check if they have asymmetrical features. This interesting fact happens when the twins split from one fertilized ovum more than a week after they were conceived.

7. Twins already interact and connect with one another inside the womb

Twins already learn how to share in the womb. They share the same uterus, nutrients, and oxygen. After studying various videos of multiples and twins inside their mothers’ womb, researchers found out that twins already reach and try to connect with each other at around 14 weeks. After a few more weeks, most likely around 18 weeks gestation, they were seen interacting more often by touching each other.

Researchers analyzed this kinematics and the results show that twins interact with each other in the womb. They even know where to touch the other delicately like they are touching their own.

These facts only add to the long list of reasons why twins are so interesting. They may look exactly alike but they are individually unique. However, you can still strengthen the bond by dressing them up in the same clothes or letting them share a nice and comfy nursing pillow.

Do you have other interesting things to share about twins and multiples? Let us know by leaving a comment or message!

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For over 15 years TwinStuff has provided guidance and support to parents through twins information and community. You can follow them and join in the discussion here and here.

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