Penises are shrinking and mankind could be at risk of extinction, says scientist

Men are in danger with their penises in particular being under threat due to "feminisation", says award-winning scientist.

Dr Shanna Swan says that micro plastics and other pollutants are preventing male babies from developing properly and causing an overall “feminisation” of humanity.

In her research, Dr Swan found that over the past forty or fifty years, sperm counts among men in Western countries have dropped by more than 50% – but the story doesn’t end there.

Not only are men less fertile, she says, but they are affected by higher rates of erectile dysfunction and growing numbers of babies born with small penises.

That’s not only awkward when it comes to communal showers at the gym, it’s a threat to mankind’s long-term survival.

Dr Swan says humanity is in the grip of a "global existential crisis"

"In some parts of the world, the average twenty-something today is less fertile than her grandmother was at 35," Dr Swan writes, dubbing the situation a "global existential crisis" in the book.

  • Doctor 'secretly gave women his own sperm and fathered 17 children'

While a number of toxic chemicals are affecting our declining fertility she singles out phthalates, chemicals used to make plastics flexible for use in food packaging.

Phthalates can impact how certain vital hormones are produced. In experiments, lab rats exposed to phthalates had male babies with a smaller penis and scrotum with their sperm counts being lower.

“Chemicals in our environment and unhealthy lifestyle practices in our modern world are disrupting our hormonal balance, causing various degrees of reproductive havoc,” she writes in her book Count Down.

"Babies are now entering the world already contaminated with chemicals because of the substances they absorb in the womb," she said.

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Some of the chemicals, called PFAS, are described as “forever chemicals”, because they aren't broken down in the environment or the human body. Instead, they build up over decades, massively impacting fertility and having a devastating effect on babies’ development.

And the higher and higher levels of these chemicals in our bodies has brought humanity to a breaking point.

In her book, Dr Swan writes that there are five factors that define a species as “endangered”.

"Only one needs to be met," she says, "the current state of affairs for humans meets at least three."

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