By Amy Norton
THURSDAY, Oct. 26, 2017 (HealthDay News) — Young women who are underweight may have an increased risk of early menopause, potentially jeopardizing their health, a large completely new study suggests.
The study found which those who were underweight in younger adulthood were 30 percent more likely to go through early menopause, compared to normal-weight women.
Early menopause — defined in This particular study as before age 45 — is actually a concern for several reasons. the item shortens a woman’s reproductive life, in addition to has been tied to heightened risks of heart disease, osteoporosis in addition to memory decline.
The completely new findings don’t prove which being underweight directly causes early menopause, said lead researcher Kathleen Szegda, of Partners for a Healthier Community in Springfield, Mass.
“This particular is actually suggestive, in addition to needs to be followed up with additional studies,” she said.
Still, there are known links between weight in addition to a woman’s menstrual cycle, Szegda noted. Some underweight women, for example, stop getting their periods altogether, in what’s called amenorrhea — though the item’s not clear if which could contribute to early menopause.
One theory, Szegda said, is actually which some underweight women may have been modest at birth, too. which means they could have been born that has a smaller “ovarian pool,” or number of eggs.
The findings, published Oct. 26 inside the journal Human Reproduction, are based on nearly 79,000 U.S. nurses taking part in a large health study. They were between the ages 25 in addition to 42 at the study’s outset, in 1989.
Over the next 22 years, just over 2,800 of those women went through early menopause. in addition to the chances were higher among those who’d been underweight at age 18 or 35 — the two time points the researchers analyzed.
“Underweight” was defined as a body mass index (BMI) below 18.5. BMI is actually a measure of weight in relation to height, in addition to figures between 18.5 in addition to 24.9 are considered “normal.” So, the researchers explained, a woman 5 feet 5 inches tall who weighs 111 pounds or less could be considered underweight.
Most of the underweight women did not go through early menopause: For example, of roughly 1,100 women who were underweight at age 35, only 61 went through menopause early.
however their risks were higher, even compared with women at the lower end of the normal-weight range: The odds of early menopause were 56 percent higher among women who were underweight at age 35, in addition to 51 percent higher if they were underweight at age 18.
“This particular is actually more evidence which you truly can be too thin,” said Dr. Lila Nachtigall, a professor of obstetrics in addition to gynecology at NYU Langone Medical Center in completely new York City.
Nachtigall, who was not involved inside the study, did point to some limitations with the research.
For one, she said, some underweight women may have mistakenly said they’d gone through menopause when they were truly experiencing amenorrhea.
Plus, the researchers did not know whether the women were naturally very thin or had an eating disorder.
Nachtigall said the potential role of malnutrition is actually important since which could contribute to “ovarian failure” in addition to menopause.
Szegda’s team did find some evidence which extreme weight “cycling” was a culprit. The risk of early menopause was highest among underweight women who also reported major weight alterations — losing at least 20 pounds three or more times in young adulthood.
however, Szegda said, which was based on a handful of women, so the item’s not clear what to make of the item.
Since early menopause is actually linked to certain diseases, the item is actually a concern beyond fertility, Nachtigall said.
Women who do transition early, she said, should pay extra attention to their risk factors for heart disease in addition to osteoporosis — regardless of their weight. which means being vigilant about diet in addition to exercise, in addition to reining in conditions such as high blood pressure in addition to high cholesterol.
Underweight women, Nachtigall added, may need a nutritional evaluation to make sure they are getting enough protein, fat, vitamins in addition to minerals.
Copyright © 2017 HealthDay. All rights reserved.
SOURCES: Kathleen Szegda, Ph.D., M.P.H., director, community research in addition to evaluation, Partners for a Healthier Community, Public Health Institute of Western Massachusetts, Springfield, Mass.; Lila Nachtigall, M.D., professor, obstetrics in addition to gynecology, NYU Langone Medical Center, completely new York City; Oct. 26, 2017, Human Reproduction, online
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