Health claim
“Regular moderate exercise improves sperm morphology by 10-15%.”
Claim checked — mixed / earlyMedium riskexercise
Evidence Summary
Some evidence supports this, but findings are inconsistent or limited in scope.
Research suggests regular moderate exercise can positively affect sperm morphology, but the reported magnitude of improvement (10‑15%) is not consistently demonstrated across studies.
Extracted from
Fertility crisis: Is modern life making men infertile? - BBC REELBBC Global
The BBC REEL video explores whether modern environmental chemicals may be contributing to a decline in male fertility, reviewing current research and expert commentary.
Watch breakdown →