The summary is almost clear to have healthy diet and natural movement. But at the end he compares singapore policy on owning cars and traffic with US, which is very illogical. Singapore is a very small town when compared its not even 1/100th of a single state in US. How do you connect far distances without cars. At some points i found him blindly judging without proper logical reasoning. And also he concludes directly faith and purpose are correlated with longevity, which in turn contradicts the fact that religious countries have less life expectancies.