Saturday, January 22, 2011

Insulin Resistence

Insulin is a hormone produced by the pancreas that facilitates moving blood glucose into the cells of the body.Without insulin the cells of the body would not be able to "to process the glucose and therefore have no energy for movement, growth, repair, or other functions."

 Type one diabetes occurs when the pancreas does not produce insulin and it must be added to the body. Type two diabetes develops when the host body becomes resistent to insulin....

"Type 2 people will develop what is known as insulin resistance......The body's cells become resistant to the insulin almost like type 1 diabetes, but what happens is that because the body is resistant to insulin (it will )over secretes(more) insulin in order to try to feed its cells. It can become an ever increasing cycle that can escalate out of control."

 The scary thing is type 2 diabetes is on the rise with the WHO estimating 90% of reported cases being of the type two variety.Why this is ominous is the relationship between insulin resistence-weight gain -pre diabetes- type 2 diabetes which contributes directly to rising levels of heart disease and a diagnosis of Metabolic Syndrome.

"Here are some of the most recent predictions from major health organizations:

o "Projections of diabetes mortality trends into the year 2016 show an exponential increase in the number of diabetes deaths" - Public Health Agency of Canada
o IMS, a health watch organization, has recorded "a 75% increase [in diabetes] over six years."
o "Diabetes is becoming more common in the United States" - Center for Disease Control
o "More than two million Canadians have diabetes. By the end of the decade, this number is expected to rise to three million." - Canadian Diabetes Association
o "At least 171 million people worldwide have diabetes; this figure is likely to be more than double by 2030." -World Health Organization

 In laymens terms(or at least my understanding) when the body's cells become insulin resistent the ability to absorb glucose from the blood is impaired. With excess glucose remaining in the blood the liver has no option other than converting the excess blood sugar to fat which is then distributed throughout the body via the blood stream = weight gain. With excess levels of insulin in the blood....

"The cell, in turn, is overwhelmed by this surplus insulin and protects itself by reducing the number of its insulin receptor sites.This process leaves too few sites for insulin to carry out its normal function, which is to attach itself to the cell wall and act as a "key in a lock" to allow glucose to pass through the cell wall and be converted into energy. The vastly reduced number of receptor sites in insulin resistant people causes an excess of insulin "rejected" by the cell to float freely in the blood stream, which can damage the cardiovascular system."

Why? The working theory........

"We are still genetically "wired" to thrive on the entrenched habits of our ancestors, who consumed different, NUTRIENT-rich foods, a diet LOW in carbohydrates and sustained GREATER levels of movement and EXERCISE. Some people may also have a genetic predisposition to insulin resistance, while others develop the condition through high STRESS and UNHEALTHY lifestyles."

Insulin resistence and pre diabetes can be reversed....."The first line of defense against type 2 diabetes is diet and exercise. Just half an hour of walking a day will dramatically reduce the risk of developing type 2 diabetes."

No comments: