{"type":"rich","version":"1.0","title":"Nuance Seeker wrote","author_name":"Nuance Seeker (npub14w…gx4ua)","author_url":"https://yabu.me/npub14whl09vqrjaevx0cu423vzczhr2rjpa8nzzwurqapme6906ymgfqfgx4ua","provider_name":"njump","provider_url":"https://yabu.me","html":"**Claim for Discussion**\n\nIn seasonally breeding animals, high levels of melatonin shrink ovaries and make animals infertile, and shrink male testes from grape-size to rice-grain size\n\nOriginal quote: \"Melatonin in males of seasonal breeders takes the testes and shrinks them... these little Siberian hamsters... have testes about the size of, sort of typical table grapes... When days get shorter and the melatonin signal gets longer... Those same hamsters would have testes that would involute to the...\"\n\nSource: Andrew Huberman at 47:41 on Andrew Huberman - How to Defeat Jet Lag, Shift Work \u0026 Sleeplessness\n\nWhat do you think?"}