napoleon hill semen retention for Dummies

“For those who’re looking to conceive, you should ejaculate each day or just about every other day,” Dubin claims. “More frequent ejaculations strengthen sperm quality, motility, and DNA fragmentation,” that's a sort of harm to your sperm’s DNA.A 2018 examine suggests that ejaculatory abstinence durations of more than 4 days have a harm

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