6 habits of killing sperm, don't ask why your weak sperm is difficult to conceive
men should immediately abandon the seemingly harmless daily routines if they do not want to have both weak and weak sperm.10 interesting facts about sperm to men do not know
almost everyone, including men, only knows that sperm contributes to conception to help people maintain their race without knowing that there are many interesting things aboutThe process of sperm formation and the 5 facts startle you
it takes 10-12 weeks for mature sperm, a testicle to produce about 50-150 million sperm per day, but only once a fever of over 38.5 degrees c can cause low sperm count, weak