Those acupressure wristbands might not help for seasickness, but they could help for morning sickness. Ruth Jenkinson/Dorling Kindersley/Getty Images hide caption

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Since marijuana doesn't benefit mother or baby it should be avoided, researchers say. But there is stronger evidence for the harms of alcohol and tobacco. Roy Morsch/Getty Images hide caption

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A New Course At Arkansas Colleges: How To Not Get Pregnant

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Acetaminophen, which is sold under the brand name Tylenol, may carry underappreciated risks. But teasing out their magnitude is a challenge. Scott Olson/Getty Images hide caption

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Maria Fabrizio for NPR

When Pregnant Women Need Medicine, They Encounter A Void

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Vanessa Gomez (left) with her son Ezra, 2, and her friend Cristy Fernandez with her 9-month-old-son River, in the Wynwood neighborhood of Miami. At least 14 people likely caught Zika from mosquitoes in the neighborhood, health officials say. Gomez calls that news "scary," but adds, "we cannot stop living our lives." Marta Lavandier/AP hide caption

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With Zika in Miami, What Should Pregnant Women Across The U.S. Do?

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Eight months pregnant, Mara Torres stands next to a mosquito net placed over her bed in Cali, Colombia. Health officials in Cali have delivered mosquito nets to pregnant women to help protect them from the bites of mosquitoes that can transmit dengue, chikungunya or Zika. Luis Robayo /AFP/Getty Images hide caption

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Zika Infection Late In Pregnancy Carries Little Risk of Microcephaly

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Aedes aegypti mosquito photographed through a microscope. Felipe Dana/AP hide caption

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Felipe Dana/AP

CDC: 157 Pregnant Women In The U.S. Have Tested Positive For Zika

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In some parts of the country, this might require bug spray. Steven Errico/Getty Images hide caption

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Who Should Be Worried About Zika And What Should They Do?

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Doctors don't always suggest that pregnant women get flu shots, which may account for the relatively low vaccination rates. Jamie Grill/Tetra images RF/Getty Images hide caption

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Molecular markers show structures and cell types within a human embryo, shown here 12 days after fertilization. The epiblast, for example, appears in green. Gist Croft, Alessia Deglincerti, and Ali H. Brivanlou/The Rockefeller University hide caption

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Gist Croft, Alessia Deglincerti, and Ali H. Brivanlou/The Rockefeller University

Advance In Human Embryo Research Rekindles Ethical Debate

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Tracy Smith, 38, and her children Hazel, 8, and Finley, 5, at their home in Houston. Smith is pregnant with twins and says she's a little more worried than usual about the approach of mosquito season. Carrie Feibel/Houston Public Media hide caption

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Carrie Feibel/Houston Public Media

In Houston, Pregnant Women And Their Doctors Weigh Risks Of Zika

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A pregnant woman gets an ultrasound to monitor for the birth defect microcephaly, in Guatemala City last month. Johan Ordonez/AFP/Getty Images hide caption

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Pregnant Women May Be Able To Get Answers About Zika Earlier

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Amanda Hensley with her daughter, Valencia. Hensley says several hospitals and clinics she contacted were reluctant to help her quit her opioid habit. "Nobody wants to touch a pregnant woman with an addiction issue." Sarah Jane Tribble/WCPN hide caption

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Pregnant And Addicted: The Tough Road To Family Health

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Carolyn Rossi, a registered nurse at the Hospital of Central Connecticut, says the opioid epidemic has required nurses who used to specialize in care for infants gain insights into caring for addicted mothers, as well. Rusty Kimball/Courtesy of Hartford HealthCare hide caption

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Rusty Kimball/Courtesy of Hartford HealthCare

To Help Newborns Dependent On Opioids, Hospitals Rethink Mom's Role

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More than 20,000 babies in the U.S. were born with congenital rubella syndrome during an outbreak of rubella in 1964-65. A vaccine developed in 1969 helped curb the virus's spread but hasn't eliminated it worldwide. Public Health Image Library/CDC hide caption

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Public Health Image Library/CDC

Lessons From Rubella Suggest Zika's Impact Could Linger

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A medical researcher prepares tests for various diseases including Zika. Arnulfo Franco/AP hide caption

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Arnulfo Franco/AP

How Best To Test For Zika Virus?

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