Beer has the effect of strengthening the spleen and appetizing. Many people regard it as a daily soft drink and even call it "liquid bread". Especially in summer
anal vibrator , beer has become a favorite meal drink. British scientists recently issued a warning that beer directly affects male fertility. According to reports, Lynn Frazer, a fertility expert at King's College London, studied three chemicals that affect fertility-genistein in soybeans and other beans, 8-prenylnaringenin in hops, and phenol nonyl found in cleaners
vibrator for men nice ass , paints, herbicides and pesticides. Scientists have found that these substances can mimic the functions of estrogen and affect the movement of sperm, thereby reducing male fertility efficiency. Experts explained that when sperm encounter an egg
male chastity cages , they release an enzyme that breaks through the outer membrane of the egg, and estrogen can stimulate the activity of sperm. If immature sperm are stimulated prematurely and have not yet encountered the egg, the enzyme is released at the time, but cannot break through the outer membrane of the egg when it is really needed, then fertility will be affected.
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