Chemist Behind the Combined Oral Contraceptive Dies at 102
Chemist Behind the Combined Oral Contraceptive Dies at 102
George Rosenkranz was part of a team in Mexico City that first synthesized norethindrone in 1951.

Chemist Behind the Combined Oral Contraceptive Dies at 102
Chemist Behind the Combined Oral Contraceptive Dies at 102

George Rosenkranz was part of a team in Mexico City that first synthesized norethindrone in 1951.

George Rosenkranz was part of a team in Mexico City that first synthesized norethindrone in 1951.

pregnancy
Opinion: 10 Ways to Support New Mothers in STEM
Opinion: 10 Ways to Support New Mothers in STEM
Michele Hoffmann | Jun 27, 2019
A support group for mothers is a model for practical, inexpensive steps to ease women’s transition to motherhood—and hopefully retain them in science.
Metabolism Hits a Ceiling in Athletic Endurance Feats
Metabolism Hits a Ceiling in Athletic Endurance Feats
Shawna Williams | Jun 5, 2019
In long-distance, physically taxing events, the amount of energy athletes can expend appears to peak at about 2.5 times their metabolic resting rate—a maximum likely dictated by how many calories they can digest.
Three Studies Track People’s Microbiomes Through Health and Disease
Three Studies Track People’s Microbiomes Through Health and Disease
Emma Yasinski | May 29, 2019
The second phase of the Human Microbiome Project reports on microbial composition in prediabetes, inflammatory bowel disease, and pregnancy.
CDC Reports About 700 Pregnancy-Related Deaths Each Year in the US
CDC Reports About 700 Pregnancy-Related Deaths Each Year in the US
Chia-Yi Hou | May 8, 2019
Black women and Native American women die roughly three times more often than white women, and 60 percent of all maternal deaths may be preventable.
Prenatal Sequencing for Some Autism Genes May Soon Be Available
Prenatal Sequencing for Some Autism Genes May Soon Be Available
Jessica Wright | Apr 22, 2019
Two studies, taken together, imply that sequencing can identify a genetic cause for ultrasound abnormalities in roughly 10 percent of cases.
Gene Variant Linked to Lower Levels of Hormonal Birth Control
Gene Variant Linked to Lower Levels of Hormonal Birth Control
Shawna Williams | Mar 14, 2019
Such differences may help explain accidental pregnancies among women on the pill, researchers say.
Does Prior Dengue Exposure Help or Hurt a Zika Infection?
Does Prior Dengue Exposure Help or Hurt a Zika Infection?
Diana Kwon | Mar 6, 2019
Animal and cell culture studies show evidence that dengue antibodies can both neutralize and enhance Zika, but human investigations have only found protective effects.
Changes in Height Linked to Increased C-section Rates
Changes in Height Linked to Increased C-section Rates
Abby Olena | Feb 6, 2019
Countries with populations whose average adult height grew late last century are more likely to have high rates of babies delivered surgically.
Infographic: How Exposure to Cannabis in Utero Affects Development
Infographic: How Exposure to Cannabis in Utero Affects Development
Andrew Scheyer | Jan 1, 2019
Rodent and human studies have revealed a multitude of effects starting during gestation and lasting into adulthood.