By the way, the link to the study isn't working.
Here, same stuff.. well, different conclusions from the origin, and without some "those damn whores" attitude. Especially regarding health, as that hasn't been yet mentioned.
"the harboring of genetic material and cells that were exchanged between fetus and mother during pregnancy -- have linked the phenomenon to autoimmune diseases and cancer, sometimes for better and other times for worse."
Male DNA commonly found in women’s brains, likely from prior pregnancy with a male fetus -- ScienceDaily
Here, link and quote from that pubmed study:
" CONCLUSIONS: Male microchimerism was not infrequent in women without sons. Besides known pregnancies, other possible sources of male microchimerism include unrecognized spontaneous abortion, vanished male twin, an older brother transferred by the maternal circulation, or sexual intercourse. Male microchimerism was significantly more frequent and levels were higher in women with induced abortion than in women with other pregnancy histories. Further studies are needed to determine specific origins of male microchimerism in women. "
"Or sexual in intercourse". It seems that some religious US folks (or something like that) picked up that and made an Youtube video about the dangers of promiscuous life style, especially regarding "casual" partners. Like I already pointed; what about the non-casual partners? Yeah, but that wont fit into their message, so it was left out.