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Study Reveals Age-Related DNA Mutations in Men's Sperm

10/19/2025

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Summary

Story summary

Researchers from the Wellcome Sanger Institute and King's College London report age-related accumulation of harmful DNA mutations in men's sperm.
The study analyzed 81 samples from men aged 24–75 and found about 2% in men in their 30s and 3–5% in older men.
By age 70, the average was 4.5%.
The findings, published in Nature, advance understanding of the male germline and genetic inheritance.

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Story summary

Researchers from the Wellcome Sanger Institute and King's College London report age-related accumulation of harmful DNA mutations in men's sperm.
The study analyzed 81 samples from men aged 24–75 and found about 2% in men in their 30s and 3–5% in older men.
By age 70, the average was 4.5%.
The findings, published in Nature, advance understanding of the male germline and genetic inheritance.