<p>In this episode, we’ll hear about why you might want to be skeptical of <a href="http://crosstalk.cell.com/blog/the-dangerous-truth-about-raw-water" target="_blank">raw water</a>, with Gail Teitzel, Editor of <em>Trends in Microbiology</em> (00:00); how brain chemistry might change in mice as a result of social isolation, with David Anderson,&nbsp;<em><a href="https://www.cell.com/cell/fulltext/S0092-8674(18)30361-1" target="_blank">Cell</a></em> (07:45); and what’s unusual about neurons in people with severe obesity, with Dhruv Sareen,&nbsp;<em><a href="https://www.cell.com/cell-stem-cell/fulltext/S1934-5909(18)30115-2" target="_blank">Cell Stem Cell</a></em> (17:10). Then, stay tuned for our monthly news roundup, including using MRI to predict risk tolerance; rethinking what we know about genetics, sugar, and weight gain; and how the sweet potato arrived in Polynesia (26:13).</p>