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Apr. 14th, 2001 11:24 pm![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
scottobearfrom here
LONDON NEW research has confirmed fears that men are becoming less fertile. The study shows a halving of sperm production in 10 years. Scientists made the discovery after post-mortem studies of mostly middle-aged men from Finland who died between 1981 and 1991. During that time the proportion of men who had the normal biological processes leading to sperm production fell from 56.4 per cent to 26.9 per cent. During the same period there was a significant increase in the number of cases of "spermatogenic arrest", or men who did not have any mature sperm cells. The incidence of complete spermatogenic arrest rose from 8 per cent to 20 per cent, and of partial spermatogenic arrest from 31.4 per cent to 48.5 per cent. The weight of the men's testicles had also diminished during the 10 years. Earlier studies had already indicated a long-term lowering of both sper,in quantity and quality. A British study last year showed that men born in the 1970s produced on average 25 per cent fewer sperm than those born in the 1950s. An annual decline of 2 per cent suggested that boys bom 60 years from now could be infertile. - PA
LONDON NEW research has confirmed fears that men are becoming less fertile. The study shows a halving of sperm production in 10 years. Scientists made the discovery after post-mortem studies of mostly middle-aged men from Finland who died between 1981 and 1991. During that time the proportion of men who had the normal biological processes leading to sperm production fell from 56.4 per cent to 26.9 per cent. During the same period there was a significant increase in the number of cases of "spermatogenic arrest", or men who did not have any mature sperm cells. The incidence of complete spermatogenic arrest rose from 8 per cent to 20 per cent, and of partial spermatogenic arrest from 31.4 per cent to 48.5 per cent. The weight of the men's testicles had also diminished during the 10 years. Earlier studies had already indicated a long-term lowering of both sper,in quantity and quality. A British study last year showed that men born in the 1970s produced on average 25 per cent fewer sperm than those born in the 1950s. An annual decline of 2 per cent suggested that boys bom 60 years from now could be infertile. - PA
