Reuters / Denmark :
According to scientists at the international research center Edmarc @ Rigshospitalet in
Copenhagen, Denmark it’s not fun to be in the sun anymore, because the solar UV rays are bad for the human skin and sunscreens are damaging men’s sperm.
The deterioration of the quality of men’s sperm has been blamed on UV filters that interfere with the functioning of sperm. These UV filters are found in Sunblock cremes, but also in paint, textiles and food packaging.
Nowadays mens’ sperm contains far less spermatozoa that it used to since WW II. This is partially blamed on chemical UV filters associated with reproduction disorders in test animals and potentially affecting the quality of human sperm as well.
UV filters are among the potentially hormone-destructing chemicals we are exposed to, but they tend to be overlooked in ‘regular’ research. If UV filters make spermatozoa confused it could be one of the reasons why more and more couples seek help for infertility.
Edmarc researchers found that 13 of the 29 UV filters approved for the use in sunscreen in the EU and the USA affected the sperm in a manner similar to the female hormone progesterone, which is used as a homing signal to swim towards the eggs, which leads to fertilization failures.
These sperm affecting UV filters are known to pass through the skin and into the bloodstream. Once a substance is present in the blood, it may affect the organs in the body.
In addition, mixing small doses of different UV filters “that in itself do not interfere with sperm cells gave the same effect. Together these substances can have a cumulative effect, even if they occur in very low concentrations, a so-called cocktail effect.
To most people this isn’t the least amazing, because we all know that the skin is a bad barrier for many substances. When applying sunscreen, skin cream or cosmetics, there is a significant danger that substances in them will then proceed into the body.
A further study revealed that young women aged 16-21 had the highest levels of UV filters which once again was attributed to cosmetics, such as nigth cream.
Crickey Conservation Society since 2006.