These well-known household chemicals make dogs and men sterile

Infertility from chemicals common in households?

Dog fertility appears to be reduced by chemicals that are widely used in the home. What is even worse, however, is that men are also affected by these effects.

In their current study, the scientists at Nottingham University found that chemicals in our households reduce the fertility of dogs and men. The doctors published the results of their study in the English-language journal "Scientific Reports".

Fertility decreases

Earlier research had shown that the number of human sperms decreased dramatically. There has been a 50 percent reduction in sperm quality worldwide in the past 80 years. Similar effects were observed in dogs. This suggests that certain artificial chemicals can trigger a true infertility crisis. To test their theory, researchers at Nottingham University exposed samples of human and dog sperm to two household chemicals. They investigated the effects of PCB153 and DEHP, which are found in carpets, floors, sofas, clothing and toys, for example. The researchers found that exposure to daily concentrations in the laboratory had the same harmful effects on sperm in humans and dogs. The exposure reduced their buoyancy and also damaged their DNA.

Harmful chemicals in everyday consumer goods

This new study supports the thesis that domestic dogs are actually a kind of mirror for male reproductive waste. It has been shown that certain chemicals that are common in our home environment and at work may be responsible for the decrease in the quality of sperm that occurs in both humans and dogs that are in the same environment. Hormone-disrupting chemicals, such as the phthalate DEHP highlighted in this study, have been associated with a reduction in male fertility for many years, the research team reports. However, these chemicals are still used in everyday consumer goods, which can be found everywhere in our households.

More research is needed

Male infertility is associated with increased DNA damage in sperm. The scientists suspect that this damage is the same in dogs because the animals live in the same domestic environment. However, critics of the research complain that laboratory tests do not always reflect real life. The current study shows that two artificial substances can damage sperm in the laboratory, but care must be taken when interpreting these results. Because laboratory results can be far from real life. Further research on this topic is therefore necessary.

Everyday chemicals have to be regulated more strictly

The latest research shows once again that we need faster, stronger and more comprehensive regulation of chemicals to protect people and animals from their harmful properties. Some time ago, another study had found that flame-retardant chemicals in everyday items poison our children. (as)

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