Science has officially entered the “wait, we can do THAT now?” phase again. Doctors in Belgium managed to help a man regain viable sperm using testicle tissue frozen when he was a child, which sounds less like modern medicine and more like a rejected sci-fi plotline from a streaming series nobody would believe. While most people struggle to remember where they left their car keys, researchers managed to freeze living cells for years, transplant them back later, and potentially restore fertility. Humanity really went from leeches to this in a surprisingly short amount of time.
World First Transplant: Man Regains Viable Sperm From His Childhood Testicle Tissue
