#Reproduction5

16 Feb 2026

High-dose antioxidants may harm sperm and offspring

A study in mice found that regular high doses of antioxidant supplements can damage sperm and change skull and facial development in offspring. Researchers advise caution for men taking large antioxidant doses when planning children.

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Photo by James Wainscoat, Unsplash

29 Jan 2026

Hidden RNA aging clock found in human sperm

Researchers at University of Utah Health discovered an RNA “aging clock” in sperm. Using PANDORA-seq, they found age-related RNA changes in mice and humans and showed these RNAs can alter early embryo cells.

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24 Dec 2025

How embryos pause growth in diapause

A study in mice explains how embryonic stem cells stay able to become any cell during diapause. Different stresses slow metabolism but keep cell identity, and cells resume normal development when stress ends.

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23 Dec 2025

Father’s microplastic exposure affects offspring health

A mouse study found that when fathers were exposed to microplastics, their offspring developed metabolic problems. Female offspring showed diabetic signs and researchers linked the effect to changes in sperm small RNAs; the work was published in the Journal of the Endocrine Society.

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20 Dec 2025

Early pregnancy and women’s long-term earnings

A new study finds that having a child early in a career is linked to lower lifetime earnings. Researchers followed nearly 6,000 women across decades and identify career disruption and education as key factors.

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