Tall Women More Likely To Have Twins
Taller women have more of an insulin-like growth factor that has been linked to height and to the rate of twins in previous work. Dr. Gary Steinman, an obstetrician at Long Island Jewish Medical Center, compared heights of 125 women who had twins and 24 who had triplets to the average height of U.S. women.A researcher who specializes in multiple-birth pregnancies has confirmed that taller women are more likely to have twins.
Those who birthed two or more children were on average more than an inch taller.
The study was published in the September issue of the Journal of Reproductive Medicine.
Insulin-like growth factor (IGF) is a protein released by the liver in response to growth hormones. It increases the sensitivity of the ovaries to follicle stimulating hormone, thereby increasing ovulation.
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