选年轻男人的优质精子（如果想优生优育）

参考

Michael.E,et al. Association of paternal age with perinatal outcomes between 2007 and 2016 in the United States: population based cohort stud[J].British Medical Journal. 2018(10)

Liang.G.L et al. microRNAs in aged sperm confer psychiatric symptoms to offspring through causing the dysfunction of estradiol signaling in early embryos[J]Cell Discovery.2022(7)