RFK Jr. Is Very Interested In, And Likely Wrong About, Your Teenager’s Sperm Countfrom the see,-men? RFK Jr: "Today the average teenager in this country has 50% of the sperm count, 50% of the testosterone of a 65 year old man. — Aaron Rupar (@atrupar.com) 2025-10-16T20:23:35.124ZLet’s focus in real hard on the claim about teenagers’ sperm count. Contrary to Kennedy’s claims, sperm counts decline with age, so young men have much higher counts than older men. Filed Under: health and human services, rfk jr., sperm, sperm counts