Jocelyn Kaiser, a staff writer and editor, sheds light on the APOE4 gene linked to Alzheimer's disease. They discuss recent breakthroughs that may lead to innovative treatments targeting this gene. The conversation also dives into a fascinating carbon sequestration method that involves burying trees, supported by the discovery of a 3,700-year-old log. Additionally, they touch on the exciting potential of digital twins in revolutionizing medicine, promising personalized healthcare like never before.