Scientists: the impoverished sperm with humanity facing extinction
Men in Europe, Australia and North America produce half the sperm than 40 years ago, discovered by scientists from the Hebrew University in Jerusalem. If nothing can be done, humanity will die out, they warn.
Sperm count in men in developed countries has halved in the last 40 years. If nothing can be done, humanity will be extinct, scientists warned.
“The future worries me, said bi-Bi-si one of the study’s authors Dr. Hagai Levine. — In the future it is fraught with problems of reproduction in General and may lead to the extinction of humanity”.
Levin with the colleagues from the Hebrew University in Jerusalem based their publication Human Reproduction Update on the results of 200 studies in Europe, Australia, New Zealand and North America.
In Asia, Africa and South America, this decline is not observed, the scientists write, but note that they had to settle for a much more meager data.
Levin fears that the men on those continents will suffer the same fate.
Need something to do. For example, better to regulate the use of chemicals. And we just have to continue to fight obesity and Smoking.Hagai Lavendin of the study’s authors
Scientists unrelated to this study, in General, appreciate the work of colleagues, but some found them to hasty conclusions.
“None of these publications still has not caused me much confidence,’ said Professor Allan Pacey of Sheffield University. — However, Dr. Levine and his colleagues accounted for most of the shortcomings of previous research.”
In his opinion, Levine’s work represents a significant step forward, but this is just the Foundation for further study of the problem.
Still not clear why the quality of sperm deteriorates. Among the reasons were called the chemicals included in fertilizers and plastics, obesity, Smoking, stress and a sedentary lifestyle.