Insulin is a fat storage hormone, it works to shuttle the sugar from your blood stream into your fat cells to store for later. Insulin has a number of other reproductive functions and has effects on skin health, cravings and the like. Insulin levels naturally increase after eating a meal that contains carbohydrates, dairy or protein. If you are insulin resistant then you can have an elevated level of insulin when you are fasting, or you can experience too much insulin release in response to those foods. This can trap your body in fat storage mode and inhibit fat loss.
Insulin is a hormone that is produced by specialized cells (beta cells) of the pancreas. (The pancreas is a deep-seated organ in the abdomen located behind the stomach.) In addition to helping glucose enter the cells, insulin is also important in tightly regulating the level of glucose in the blood. After a meal, the blood glucose level rises. In response to the increased glucose level, the pancreas normally releases more insulin into the bloodstream to help glucose enter the cells and lower blood glucose levels after a meal. When the blood glucose levels are lowered, the insulin release from the pancreas is turned down. It is important to note that even in the fasting state there is a low steady release of insulin than fluctuates a bit and helps to maintain a steady blood sugar level during fasting. In normal individuals, such a regulatory system helps to keep blood glucose levels in a tightly controlled range. As outlined above, in patients with diabetes, the insulin is either absent, relatively insufficient for the body's needs, or not used properly by the body. All of these factors cause elevated levels of blood glucose (hyperglycemia).
^ Feinman, R. D; Pogozelski, W. K; Astrup, A; Bernstein, R. K; Fine, E. J; Westman, E. C; Accurso, A; Frassetto, L; Gower, B. A; McFarlane, S. I; Nielsen, J. V; Krarup, T; Saslow, L; Roth, K. S; Vernon, M. C; Volek, J. S; Wilshire, G. B; Dahlqvist, A; Sundberg, R; Childers, A; Morrison, K; Manninen, A. H; Dashti, H. M; Wood, R. J; Wortman, J; Worm, N (2015). "Dietary carbohydrate restriction as the first approach in diabetes management: Critical review and evidence base". Nutrition. 31 (1): 1–13. doi:10.1016/j.nut.2014.06.011. PMID 25287761.
The prevailing opinion is that all of these markers are signs of insulin resistance, meaning the diminished ability of a given amount of insulin to exert its normal effect. When insulin resistance develops, it can impact metabolic processes in many ways, resulting in the specific markers listed above. However, different individuals respond to insulin resistance in different ways. Also, the time frame in which certain signs develop varies. This variability makes defining—and treating—metabolic syndrome tricky.
Great read! Do you follow Jade Teta and Metabolic Effect? They use an RBT, or rest-based training, protocol for their metabolic workouts. Similarly to what you described above about not prescribing preset rest times, in RBT the autonomy is in the clients hands - not the trainer. So their metabolic workout may last 20 minutes where they are doing various compound ("hybrid") movements, but they rest as they need it. Basically they "push until they can't, then rest until they can". So they end up going hard, forcing themselves to rest, then picking back up, repeat for duration of workout. I have excellent success using RBT with my coaching clients. They get an awesome workout, but don't end up like your sometimes-client above, ha. As always, loved the post. Thanks! --Brian
Resistant hypertension is defined as high blood pressure that remains above a target level, in spite of being prescribed three or more antihypertensive drugs simultaneously with different mechanisms of action. Failing to take the prescribed drugs, is an important cause of resistant hypertension. Resistant hypertension may also result from chronically high activity of the autonomic nervous system, an effect known as "neurogenic hypertension". Electrical therapies that stimulate the baroreflex are being studied as an option for lowering blood pressure in people in this situation.
Emerging data suggest an important correlation between metabolic syndrome and risk of stroke.  Each of the components of metabolic syndrome has been associated with elevated stroke risk, and evidence demonstrates a relationship between the collective metabolic syndrome and risk of ischemic stroke.  Metabolic syndrome may also be linked to neuropathy beyond hyperglycemic mechanisms through inflammatory mediators.