13 Apr 2026
#Pregnancy4
15 Apr 2026
Mother helps set fetal biological clock
Researchers found that a mother sends timing signals to her fetuses so their circadian clocks match her day–night cycle. The finding comes from a study that tracked clock protein activity in pregnant mice and links timing to maternal hormones.
Photo by Maria Kovalets, Unsplash
2 Feb 2026
Wildfire smoke in late pregnancy linked to higher autism risk
A study of more than 200,000 births in Southern California found that exposure to wildfire smoke during the third trimester was associated with higher autism diagnoses by age five. Researchers say the results are not conclusive and need more study.
20 Dec 2025
Hot, humid pregnancy harms child growth more than heat alone
New research in Science Advances shows that hot, humid conditions during pregnancy damage child growth far more than high temperature by itself. The study used a combined metric (WBGT) in South Asia and found much larger prenatal risks when humidity is included.
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