Fertility Education Center Blog Happy Stork Semen naturally contains antioxidants to prevent cell damage due to chain reactions involving unpaired Sperm., Semen contain two main antioxidants such as enzymatic antioxidants and glutathione Frontiers Analysis of research trends (2014 2023) on oxidative stress and male fertility based on bibliometrics and knowledge graphs Glutathione Peroxidase 5 Is Expressed by the Entire Pig Male Genital Tract and Once in the Seminal Plasma Contributes to Sperm Survival and In Vivo Fertility PLOS One Most people are surprised to learn that sperm health isn't something that changes overnight. From the early stages of development through to maturity, a sperm cycle takes around 72 to 90 days.