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Message: <blockquote data-quote="Chris24Main" data-source="post: 2738768" data-attributes="member: 585131">OK- so quick recap...Not a general circulation situation - my general circulation is improving - I no longer need to wear socks at night, and my feet are warmer when I'm paddling on cold mornings.So - that's all good, and maps to the expectation that low carb and low insulin and some autophagy should be improving vascular health.then - due to the general lowering of blood glucose, and the greater ease of dealing with it over time, my body needs less thyroid hormone - which has 2 jobs - 1. helping to get glucose into cells (it's the thing that opens the Glut-4 receptor for anyone interested)2. regulating mitochondrial action to control temperature - in brown fat cells (like normal fat cells, but specialised for heat generation)So, the assumption is that I have acutely less thyroid hormone during the last stage of a fast, and so my brown fat cells are not being activated, and I feel (strangely - I mean it's kind of the opposite of feeling "strangely" hot when you have an infection) cold, when normally I should be warm.as [USER=372207]@Antje77[/USER] suggests - I'll be turning myself into another trial subject here - I've been perfectly toasty and slept well since my last fast, but I think it's the combination of long fasting (I'll lose 1kg or so, and very low blood glucose with high ketones, so quite an effective fast) and colder nights, and possibly in this case because I had no exercise in the afternoon before bed.So - next time, I'll do that, I'll go for a walk (tend to do a 45 min with a slendertone belt on, so reasonable exercise, but nothing too severe) and report back on whether that made a difference.</blockquote>

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