Ricardo interviews returning guest Nathan Siles about the biophysics of sleep and why modern indoor, artificial environments have disrupted it, increasing risks like cardiovascular disease, cancer, and neurodegeneration when sleep is too short or too long.

New mothers are propagandized before they ever become pregnant. In Jessica Bell’s view, the antidote is not to do battle with the old system but to patiently construct a new one—guided by mentors and peers who have already walked the path.

For the first episode of this new series, Vanessa Harlander and I met up with health expert Nathan Siles in the Netherlands to explore how to build optimal health in a modern world.