We focus on hormones as doctors, but what I'm learning is there may be more to the picture: fertility begins at the cellular level. Every time a cell produces energy, it also Perspectives on biomarkers of reproductive aging for fertility and beyond Nature Aging Glutathione improves testicular spermatogenesis through inhibiting oxidative stress, mitochondrial damage, and apoptosis induced by copper deposition in mice with Wilson disease ScienceDirect Fertility IV Glutathione Trumed Fertility Naturopathic Fertility Clinic in Edmonton Mitochondrial dysfunction in oocytes: implications for fertility and ageing Journal of Ovarian Research Springer Nature Link