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When Could Sperm Counts Reach Zero?
At 1:13:00 · chapter starts 1:10:50
Sperm counts have fallen from 180M to 35M units/ml; 17% of couples now need fertility help (up from near zero 15-20 years ago) [1] — Jeremy Grantham "Sperm count: 180M → 35M units/ml: Human sperm count has fallen from an estimated 180 million units per milliliter in hunter-gatherer times …" 1:11:51 . In 20-25 years the average couple will need medical assistance to conceive. Dr. Swan projects median count hits zero by 2045.
Human sperm count has fallen from an estimated 180 million units per milliliter in hunter-gatherer times to just 35 million today, with the rate of decline accelerating at 2.5% per year.
The World Health Organization estimates that 17% of young couples currently need help getting pregnant, up from near zero 15-20 years ago when average sperm counts were still above the 45 million threshold.
Dr. Shanna Swan's projections indicate that if current decline rates continue, the median male sperm count will reach zero by 2045, meaning the average couple will need medical help to conceive.