WITHIN A GENERATION, WE MAY LOSE THE ABILITY TO REPRODUCE — AND — IT MAY BE TOO LATE TO TAKE REAL ACTION
Do you know that couple? The ones who can’t quite get there in making a baby no matter what. Maybe you are one of them. Maybe not. Regardless, a team of scientists is warning humans could become extinct very soon, real soon, much sooner than anyone thought. From Mount Sinai, epidemiologists Dr. Shanna H. Swan is joined by Dr. Hagai Levine, an Israeli, and Niels Jørgensen, a Danish doctor, and five others. Their goal will be to perform a systematic review and meta-regression analysis, a kind of statistical synthesis of the data—a study on men and their declining production abilities.
Most men can still conceive a child naturally with a depressed sperm count, and those who can't have a booming fertility-treatment industry ready to help them. And though lower sperm counts probably have led to a small decrease in the number of children being conceived, that decline has been masked by sociological changes driving birth rates down even faster: People in the developed world are choosing to have fewer children, and they are having them later.
The problem has been debated among fertility scientists for decades now—studies suggesting that sperm counts are declining have been appearing since the ‘70s.
“We should hope for the best and prepare for the worst and that is the possibility that we will become extinct.” --- Dr.Hagai Levine
Not only were sperm counts per milliliter of semen down by more than 50 percent since 1973, but total sperm counts were down by almost 60 percent: We are producing less semen, and that semen has fewer sperm cells in it. This time around, even scientists who had been skeptical of past analyses had to admit that the study was all but unassailable.
Studies suggest testosterone levels have also dropped precipitously, with effects beginning in utero and extending into adulthood. One of the most significant markers of an organism's sex is something called anogenital distance (AGD)—the measurement between the anus and the genitals. Male AGD is typically twice the length of female, a much more dramatic difference than height or weight or musculature. Lower testosterone leads to a shorter AGD, and a measurement lower than the median correlates to a man being seven times as likely to be subfertile and gives him a greater likelihood of having undescended testicles, testicular tumors, and a smaller penis. “What you are seeing in a number of systems, other developmental systems, is that the sex differences are shrinking,” Swan told me. Men are producing less sperm. They're also becoming less male.
What if it is beyond one’s control happening before birth?
Rare symptoms for a condition referenced to as testicular dysgenesis syndrome (TDS), a collection of male reproductive problems that include hypospadias (an abnormal location for the end of the urethra), cryptorchidism (an undescended testicle), poor semen quality, and testicular cancer. It is proposed by one of the doctors with TDS is that these disorders can have a common fetal origin, a disruption in the development of the male fetus in the womb.
In ever changing DNA makeups the trick will be to stop it at just the very last second. Like you see a countdown timer illustrate on a television show when the hero is disconnecting an explosive device, and at the very last tick, it stops!
So perhaps that's the solution: As long as we hover somewhere above Sperm Count Zero, and with an assist from modern medicine, we have a shot. Men will continue to be essential to the survival of the species. The problem with innovation, though, is that it never stops.
There will be a day when women will no longer require a man. Man will only need a man. The only purpose for man will be not to be — if you believe what is forecast for the future, — next.
A new technology known as IVG—in vitro gametogenesis—is showing early promise at turning embryonic stem cells into sperm. In 2016, Japanese scientists created baby mice by fertilizing normal mouse eggs with sperm created via IVG. The stem cells in question were taken from female mice. There was no need for any males.
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A strange thing has happened to men over the past few decades: We've become increasingly infertile, so much so that within a generation we m
