W******e
发帖数: 529 | 1 For the study, which was published in the journal Human Reproduction Update,
an international team of researchers analyzed 185 studies involving 43,000
men across the world between 1973 and 2011. The team found a 52.4 percent
decrease in sperm concentration – and a 59.3 percent decline in overall
sperm count – in men from North America, Australia, New Zealand, and Europe
. However, no significant decline was observed in men from South America,
Asia, and Africa, although researchers noted that there have been far fewer
studies conducted in those regions.
Sperm Counts in Western Men May Have Decreased by 50 Percent Over 40 Years
https://www.thecut.com/2017/07/sperm-count-western-men-decline-study.html
Sperm counts of Western men plummeting, analysis finds
By Susan Scutti, CNN
Updated 6:57 PM ET, Tue July 25, 2017
http://www.cnn.com/2017/07/25/health/sperm-counts-declining-study/index.html
Sperm Counts in Western Men May Have Decreased 50 Percent in 40 Years
http://trueviralnews.com/sperm-counts-in-western-men-may-have-decreased-50-percent-in-40-years/ | s****e
发帖数: 7018 | | b********n
发帖数: 38600 | | p********r
发帖数: 4210 | | s*****r
发帖数: 11545 | 5 索男? 你也太高估自己鸟
: 可能最后白牛怀孕还是要靠索男
【在 p********r 的大作中提到】
: 可能最后白牛怀孕还是要靠索男
| W******e
发帖数: 529 | 6 可以用排除法找原因，
应该肯定不是由甜美的空气造成的吧。
千老们又有机会骗funding了。 | D***r
发帖数: 7511 | 7 美国有些男的一天cum八次，当然精子少了。
中国传统思想认为精液损失对身体影响大，即使索男一天也就撸一次 | b****r
发帖数: 672 | 8 可见外F的B里都是些什么脏水！
Update,
000
Europe
fewer
【在 W******e 的大作中提到】
: For the study, which was published in the journal Human Reproduction Update,
: an international team of researchers analyzed 185 studies involving 43,000
: men across the world between 1973 and 2011. The team found a 52.4 percent
: decrease in sperm concentration – and a 59.3 percent decline in overall
: sperm count – in men from North America, Australia, New Zealand, and Europe
: . However, no significant decline was observed in men from South America,
: Asia, and Africa, although researchers noted that there have been far fewer
: studies conducted in those regions.
: Sperm Counts in Western Men May Have Decreased by 50 Percent Over 40 Years
: https://www.thecut.com/2017/07/sperm-count-western-men-decline-study.html
| M*******n
发帖数: 10087 | 9 我每天2-3次，看来不算索南
【在 D***r 的大作中提到】
: 美国有些男的一天cum八次，当然精子少了。
: 中国传统思想认为精液损失对身体影响大，即使索男一天也就撸一次
| W******e
发帖数: 529 | | s******r
发帖数: 5309 | 11 精子数和肚子上的脂肪量成反比。这是自然控制人口的方法。当人类营养过剩，生育率
自动下降，相反，生育率上升。 | l****p
发帖数: 27354 | 12 既然欧洲也有转基因，看来不是转基因
【在 W******e 的大作中提到】
: 很可能与环境污染和／或食品有关。
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