So I followed a link from @ThomasSeay about Charles Poliquin discussing optimal workout timing, and poked around reading more.
He has this interesting article here where he actually echoes some of the themes of 180.
He talks about the fall of ‘average’ body temperature, and how this indicates a decreased metabolic state. He discusses hormonal imbalances(lowered testosterone in men, increased estrogen in women), and even ties this to early onset of menstruation in women.
Where he parts from some of what we talk about here is he describes this as primarily a problem of toxicity, that lowered body temperature is an adaptive response to toxins, and he suggests various toxicity tests and interventions to detoxify things like arsenic, cadmium and mercury.
The suggestions are basically worthwhile and agreeable- try not to microwave food in plastics, let your dry-cleaned clothes air out before wearing them, be mindful of aerosols, etc. But I would argue that these are not sufficient to really address lowered metabolism and body temperature, and hormonal imbalances.
Though by the end it seemed to shy away from some of the juiciest metabolism-related bits toward a somewhat boilerplate “do this, this, and this” list of health tips, I did like that it addressed some of the complexity of the obesity/metabolism connection.