The UN health body says that a surge in cases in South America of microcephaly was likely caused by the mosquito-borne Zika virus, and declared the situation a public health emergency.
Babies with microcephaly have an abnormally small brain and skull for their age.
Pregnant women should avoid mosquitoes, say experts, since the virus will reach the United States before a vaccine or treatment is found.
First births to mothers in their 30s are also rising, as women increasingly pursue careers before having children.
In India, a woman bearing another couple’s biological child represents a multi-billion-dollar industry. Why is the country considering a ban on the practice?
The findings add to growing evidence that the fetal environment influences brain development.
The Cleveland Clinic said it will be the first hospital in the United States to offer transplanted uteruses to 10 women beginning in the next few months.
It's not always about the mom -- grandmothers also play a role in a child's respiratory fitness.
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