The year was 1974. While newspaper columnists were busy talking about the development of in vitro fertilization and the possibility of “test tube babies,” the surprising discovery about male fertility completely escaped their notice.
Two doctors, Iowa State CM Kinloch Nelson and Raymond Bunge, compared semen samples from that time with historical data. Dramatic changes in a man's sperm count Over the past 20 years. In 1951, one milliliter of semen contained 107 million sperm. By the 1970s, that number had fallen by more than 50% to just 48 million people. The average volume of semen per ejaculation also decreased.
By the 1990s, the problem began to receive considerable scientific attention, although some researchers remained skeptical. They blamed differences in technology or the fact that most of the research involved men already undergoing treatment for infertility. Those doubts are now diminishing. “There is a tremendous amount of scientific evidence showing this decline,” he says. Albert Salas-Huetos at the University of Rovira y Virgili, Spain.
For researchers like Salas-Huetos, the big question is no longer whether this so-called “Spermageddon” is really happening, but why and what to do about it. Research is beginning to uncover environmental toxins that may be the culprit, as well as other lifestyle factors that contribute to the problem. With a better idea of the prime suspects, we may finally be able to put the brakes on this trend, or even reverse it.
decreased sperm count
around the world 1 in 6 people have problems…
Source: www.newscientist.com
