RFK Jr. says sperm counts among men in the 1970s were reportedly double those of today’s teenage boys, warning of a crisis

counts, stating that male reproductive health may be worsening over time. His comments align with discussions around a widely cited scientific review published in Human Reproduction Update in 2022, which examined global sperm count trends.

That review suggested that sperm counts may have declined over several decades in some regions, but researchers continue reading …