Stroke is defined as the sudden rupture or occlusion by clotting of a blood vessel to or within the brain. Symptoms depend greatly on which blood vessel is affected.. They can range from minor dizziness or momentary temporary loss of function that is barely perceptible to paralysis or death.

Hyperinsulinemia and the high blood Glucose levels that come with it produce two effects that are responsible for inducing Strokes. These effects are: (1) increased thickening of the blood and increased stickiness which tends to clot and block the blood vessels and, (2) the increased permeability of the microvascular system that cause the smaller blood vessels and capilliaries to leak and rupture.

Ischemic strokes are produced by blood clots that may occur at the site or may occur because of a clot that, having been formed elsewhere, was carried to the site by blood flow. When blood becomes thicker and more sticky this type of stroke becomes more likely. The high levels of Glucose and the high levels of Triglycerides that characterize both Type II diabetes and Hyperinsulinemia make the blood sticky, viscous and prone to clotting. This is why these diseases are often associated with Ischemic Stroke.

Hemorrhagic strokes are caused by rupture or severe leaking of the blood vessels. This is usually caused by Glucose induced damage to the blood vessel, particularly when small Veins or Capilaries are involved. Chronic elevated levels of blood Glucose are usually implicated in Hemorrhagic stroke.

The cause of the blood changes that induce both types of Stroke are found to be characteristic of the Hyperinsulinemia syndrome. Below we include a starter list of basic references for those so inclined. More information along with extensive scientific cites and source references are available in our Special Report. This report, Insulin: Our Silent Killer discusses much more fully the Hyperinsulinemia that is so often causally implicated in the incidence of stroke.


  1. Davis TM, et al, "Risk factors for stroke in type 2 diabetes mellitus: United Kingdom Prospective Diabetes Study (UKPDS) 29.", Arch Intern Med 1999 May 24;159(10):109710103
  2. Pyorala M, et al, "Hyperinsulinemia and the risk of stroke in healthy middle-aged men: the 22 year follow-up results of the Helsinki Policemen Study.", Stroke 1998 Sep;29(9):1860-1866
  3. Kamide K et al, "Insulin resistance is related to silent cerebral infarction in patients with essential hypertension.", Am J Hypertens 1997 Nov;10(11):1245-1249
  4. Biessels GJ, "Cerebral complications of diabetes: clinical findings and pathogenic mechanisms.", Neth J Med 1999 Feb;54(2):35-45
  5. Lukovits TG, et al, "Diabetes mellitus and cerebrovascular disease.", Neuroepidemiology 1999;18(1):1-14

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