A new study by Danish scientists has shown that the chemical substances that protect the skin from harmful UV rays, may be the reason for male infertility.
Sunscreen can deprive a man of having children, destroying sperm cells. The fact is that almost half of the substances present in the composition of these funds mimic the action of the female hormone progesterone, which prevents the normal functioning of male germ cells. Lotion absorbed by the skin, whereupon the chemicals get into the bloodstream.
Niels Skakkebaek, a professor of the University of Copenhagen, said that these results are interesting and may partly explain why unexplained infertility is so common. Professor and his colleagues tested 29 UV filters permitted for use in the manufacture of sunscreens and lotions, for live sperm cells obtained from completely healthy donors. Nearly half of the UV filters have broken function of sperm cells.
Sperm has a special channel, which is a receptor for the female hormone progesterone. 13 filters of all tested violated the vital function of male sex cells – such as the movement of sperm.
Professor Skakkebaek said that this effect began at very low doses of chemicals, lower than levels of certain UV filters found in people after applying sunscreen all over the body.
This proves once again that the principle of “the more – the better” does not work when it comes to health. And when choosing a sunscreen is better to be safe and thoroughly examine its composition.