english: Sperm that sit around in the body for a week or more start to develop abnormalities that make them less effective at head-banging their way into the egg.
non_english: U spermy, ktorá je v tele týždeň alebo dlhšie, sa začnú objavovať abnormality, ktoré spôsobia zníženie efektívnosti prerážania si cesty do vajíčka.