Fact or fiction: Do twins experience each others pain? Though scientists have proven this to be false, the phenomenon exists and is still in existence. If you think this is eerie, check out these facts found online at nursingschools.net.
Twin facts you may not have known:
1. Rates of twin births vary by location. Certain areas of the world and our own nation have much higher rates of twin births than other places. For instance, if you live in Massachusetts, New Jersey or Connecticut, the twinning rate is 25% higher than the general populace. On the flip side, Hawaii and New Mexico have a twin birth rate 30% lower than that of the national average. Scientists believe that this propensity for multiple births is the product of multiple factors involving fertility drugs, heredity, food choices and age.
2. While most people are only familiar with identical and fraternal twins, there are actually 7 different types of twins. They are: identical, fraternal, half-identical, mirror image twins, mixed chromosome twins, superfecundation, and superfetation. Those other than identical and fraternal can be quite rare.
3. Twins do not have to have the same father. While we often think of twins as having the same mother and father, it’s possible for a woman to give birth to two children on the same day who don’t share a father. This phenomenon is called heteropaternal superfecundation. It happens when a woman releases multiple eggs, each fertilized by sperm from separate instances of sexual intercourse. It’s uncommon, but genetic testing has shown that it is possible.
4. Certain diets may increase your chances of having twins. What a woman eats can help increase her chances of having twins, or so researchers think. While genetics obviously plays a big role, diet can also influence this phenomenon. Researchers have found that women who eat dairy and animal products are much more likely to have twins than those that don’t. This is likely due to a protein called IGF that increases the sensitivity of the ovaries to hormones that cause ovulation.
5. Twins separated at birth and reunited are often found to be eerily similar in personality and interests. The studies that discovered this fact, however, have widely been condemned as some of the cruelest and morally repugnant in medical history. During the 60′s and 70′s, identical twins were separated at birth in an attempt to determine whether it was nature or nurture that determined their personalities. However unethical, the study demonstrated that a great deal of who we are comes from our genes; many of the twins bore uncanny similarities in personality and preferences despite spending decades apart.
Holman, K. (2010, October 12). 20 amazing facts about twins [Web log message].
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