on9?你話一樣就一樣?
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6993171/
The body's antioxidant capacity decreases, and oxidative damage to spermatic DNA becomes more likely. In later stages, oxidative stress may lead to cell death and decrease sperm fertilization capacity. It may also cause genetic mutations in the gametes, thereby increasing the probability of miscarriage, genetic mutations in the offspring, and metabolic, psychiatric, and neurological disorders (Kong et al., 2012).
Male germ cells undergo continuous DNA replication and division throughout an individual's life. Therefore, older men are at greater risk of having germ cells carrying mutations (Gunes et al., 2016). Base substitutions account for most of the mutations and cause monogenic disorders such as achondroplasia and Apert Syndrome (Goriely & Wilkie, 2012).