Is Hoarding in Our Genes? What a Landmark Twin Study Reveals
Psychology Today | 21.06.2026 01:39
Where does hoarding behavior come from? Is it something people choose, something they learn, or something encoded in their DNA? A landmark 2009 study published in The American Journal of Psychiatry by Alessandra Iervolino and colleagues tackled this question, and what they found is both surprising and fascinating.
