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Gun Violence Contagion, Pregnancy Brain, and Dirty Towels

Research indicates that gun violence is contagious like a disease. Pregnancy causes measurable changes in the brain. Plus, science tells us how frequently we should wash our bath towels. Learn more about your ad-choices at <a href="https://www.iheartpodcastnetwork.com">https://www.iheartpodcastnetwork.com</a>See <a href="https://omnystudio.com/listener">omnystudio.com/listener</a> for privacy information.

Your weekly dose of some of the world’s latest and greatest science news, technological advancements, absurd curiosities, and groundbreaking research in everything from ancient history to the future of astrophysics. Join Lauren Vogelbaum and the HowStuffWorks team as they explore humanity’s newest discoveries in HowStuffWorks NOW.