A paper published last week by Levine et al in Human Reproductive Update states that sperm counts have now dropped 62.3% over a 50 year period (up from 59.3%) and are continuing to drop at a rate of 2.64% (4.7m sperm/year).
https://www.focusonreproduction.eu/article/ESHRE-News-Sperm-count-decline
#reproduction #sperm #spermcount