PNAS Science Sessions

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Welcome to Science Sessions, the PNAS podcast program. Listen to brief conversations with cutting-edge researchers, Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in PNAS, plus a broad range of scientific news about discoveries that affect the world around us. Please scroll down for recent podcasts.

Science of Misinformation

Aug 15, 2022

Researchers explore how misinformation spreads and what can be done to stop it.

Bias and the placebo effect

Aug 1, 2022

Lauren Howe and Alia Crum explore the interactions of societal biases with the placebo effect.

Epigenetic clocks for humans and dogs

Jul 18, 2022

Steve Horvath and Elaine Ostrander explain the usefulness of epigenetic clocks in humans and dogs.

Peopling of the Americas

Jun 27, 2022

Researchers explore how and when humans first arrived in the Americas.

How the saw sings

Jun 13, 2022

L. Mahadevan, Petur Bryde, and Suraj Shankar explain the otherworldly sounds of the musical saw.