This is what I found on USATODAY.COM:

NEW YORK – Fewer U.S. families are seeing double, according to a government report that finds a drop in new twins.

Twin births steadily increased for more than three decades, driven largely by older white moms undergoing fertility treatments.

But the rate of twin births apparently peaked in 2014 and has fallen 4% since. Last year, the rate hit its lowest point in a decade, the Centers for Disease Control and Prevention reported Thursday.

Health officials say the modest drop is a good thing because multiple baby pregnancies come with greater risks, including premature birth and low birth weight.

Experts aren’t certain why there is a decrease, but it occurred in only two categories: white women and women 30 or older. Those categories are the biggest customers of in vitro fertilization treatments, and there have been changes in that technique.

Doctors now grow embryos longer in the lab, test them, and select the best single embryo to use. In the past, they implanted multiple embryos to improve the chances of success.

Information provided by USATODAY.COM.

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