To improve health, not just healthcare, we have to do the hard work of building a healthier world. And that, says Sandro Galea, MD, dean of the Boston University School of Public Health, starts with investing in preventative care infrastructures, not just in treatments. In this episode of StartUp Health NOW, Galea shares the inspiration for his book Well: What We Need to Talk About When We Talk About Health and urges us to think more deeply about the interconnected forces around us—from money and power to love and hate, compassion, fairness, and justice—and how they can lead to sustainable health.