Which has nothing to do with count. Sperm count plays a role at chances of fertilization, not birth defect. It’s like taking a single pebble or handful of pebbles and throwing them at the window, which action is likely to break it. Same thing. Age results in DNA degradation, which is what causes mutations and therefore defects.
It’s not about count, but quality. Chances of mutations rise as well as chances of developmental issues rise with age in men.
Every example ive read about has told of increased risk of birth defects from older sperm
Which has nothing to do with count. Sperm count plays a role at chances of fertilization, not birth defect. It’s like taking a single pebble or handful of pebbles and throwing them at the window, which action is likely to break it. Same thing. Age results in DNA degradation, which is what causes mutations and therefore defects.