Twin Births on the Rise

Since the early 70s, twin births have increased and what was once rare, the multiple births are since increased more than 200 percent in the last three decades. Twin births occur once in every 35 births with significant increases to triplets and more.

One reason for this leap in multiple births has been associated with fertility treatments and fertility drugs. Medical intervention is considered the reason for multiple births that result in quadruplets and more. According to the Center for Disease Control, 43% of the births associated with fertility treatments resulted in multiples.

Still, are fertility drugs the only reason for the increase in twin births? Not exactly. The National Center for Health Statistics offered these interesting insights:

  • Twin deliveries are 25% higher in the states of Connecticut and Massachusetts than they are in other states
  • Triplet deliveries are twice the national average in New Jersey and Nebraska
  • Prefer a more tropical location? Hawaii has 30% less multiple rate than the rest of the country
  • Fraternal twins are more likely to be conceived in the month of July and January boasts the fewest number of twin conceptions

Interestingly enough, scientists are not positive on why the last is so, but they speculate that it may be related to higher Follicle Stimulating Hormones in women associated with longer daylight hours in the month of July.

But again, that’s only speculation. Multiple births are more supported by modern medicine and healthy nutrition. But the National Center for Health Statistics also notes that there is a tribe called the Yoruba in Nigeria that has the highest incidence of twinning in the entire world. The people of Nigeria associate it with eating a type of yam that actually contains a substance that is very similar to estrogen and may actually encourage multiple ovulations.

There is one last factor, the older the mother is – the more likely she is to have a multiple birth because the odds increase to 1 in 27 rather than 1 in 35. It’s really rather amazing, so it sounds like if you eat yams, live in Massachusetts and are over 35 – you increase your opportunity to have twins quite a bit – though this is only speculation.

Related Articles:

5 Great Information Resources for M.O.M.s (Mothers of Multiples)

You Might Be Having Twins If. . .

Ode to Twins and Supertwins

If I had Known: What I Would’ve Asked for Before Having Twins

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About Heather Long

Heather Long is 35 years old and currently lives in Wylie, Texas. She has been a freelance writer for six years. Her husband and she met while working together at America Online over ten years ago. They have a beautiful daughter who just turned five years old. She is learning to read and preparing for kindergarten in the fall. An author of more than 300 articles and 500+ web copy pieces, Heather has also written three books as a ghostwriter. Empty Canoe Publishing accepted a novel of her own. A former horse breeder, Heather used to get most of her exercise outside. In late 2004, early 2005 Heather started studying fitness full time in order to get herself back into shape. Heather worked with a personal trainer for six months and works out regularly. She enjoys shaking up her routine and checking out new exercises. Her current favorites are the treadmill (she walks up to 90 minutes daily) and doing yoga for stretching. She also performs strength training two to three times a week. Her goals include performing in a marathon such as the Walk for Breast Cancer Awareness or Team in Training for Lymphoma research. She enjoys sharing her knowledge and experience through the fitness and marriage blogs.