Sleep is Just as Important as Diet and Exercise

Friday, March 7th, 2008

People are always discussing, what is the best thing you can do for your body? Eating right and exercise seem to be at the top of peoples lists for having a healthy body. Recent studies show that sleep is also very important in being healthy. There are several body functions that are disturbed when you’re not getting enough sleep. This ranges from neuropsychiatric disruptions to general cardiovascular function and even insulin resistance.

sleep-insulin-resistanceSleep deprivation can disrupt normal brain function and lead to short term memory loss, anxiety and even depression. While you sleep, heart rate, blood pressure, adrenaline and platelet function slow down. Disrupting this slowdown can increase your risk of heart attack, stroke and blood clots. Sleep is important so your body has a chance to recover and recuperate from all the stresses you incur during the day.

During the deepest part of your sleep the body releases cortisol. Cortisol regulates the immune system and plays vital a role in glucose regulation. If you don’t give your body the chance to release enough cortisol you will run the risk of diabetes and a poor immune system. What a great way to prevent getting the common cold or the flu by boosting your immune system with sleep.

During deep sleep, your body also releases leptin. Leptin plays a significant role in suppressing appetite. If you sleep less you tend to have more snacks and meals when you shouldn’t. The deprivation of leptin increases your risk of obesity and insulin resistance. Insulin resistance is a precursor to diabetes and for women it can cause fertility problems. A common symptom in women suffering from polycystic ovary syndrome (PCOS) is due to insulin resistance.

As you can see sleep is very important. Do you find yourself fatigued, falling asleep involuntarily, or waking up at night? These are indications that you are not getting enough sleep. Do your body a favor and be sure to get seven to eight hours of restful sleep every night.

bcm.edu

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Obesity and Other Preventable Diseases Will Kill More People Than Terrorism

Wednesday, February 27th, 2008

Wandering around the Web I found something very interesting today. It’s the type of thing that makes you really wonder what the government is doing to our country. Our government is focusing so much attention on fighting terrorism, while obesity and other preventable “lifestyle” diseases are killing millions of more people around the world.

obesity-governmentIt is estimated that 388 million people will die from chronic disease worldwide over the next 10 years, according to World Health Organization figures. Our governments are focusing so much attention on terrorism that they have focused very little on the silent epidemic of obesity. Governments devote very little attention to it and negligible amount of funding.

Politicians talk about the crisis of health care today. How much of this health care crisis is a direct result of ignoring the problems of preventable chronic diseases? They are always talking about preventive care, yet there is no action with their words. Preventable chronic diseases will eventually put a real strain on health care systems and economies around the world.

Because of the obesity problem we have today, the average life expectancy of a person will be less than prior generations. This is the first reversal of life expectancy since data collecting began in 1900.

Global terrorism is a real threat, but it is a far less of a threat than obesity, diabetes and smoking-related illnesses. Overcoming deadly factors such as poor diet, smoking and lack of exercise should be taken a top priority in the fight against growing epidemic of preventable chronic diseases.

afp.com

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It’s Expensive to Have a Nutritious Diet

Wednesday, December 5th, 2007

More and more people in America are becoming unhealthy and are developing Type 2 Diabetes. Nutrition has changed over the years. There are more fast food restaurants than ever before. Is convenience food the main cause of weight gain in America? Or is it something else?

nutrition-health-groceriesA study at the University of Washington found that it is more expensive to eat healthy food. They compared 370 different foods at their local supermarkets. The comparison was based on calorie for calorie.

Results from the study indicate that junk food is not only less costly than fruits, vegetables, and other healthy food — but that junk food prices are less likely to rise as a result of inflation. Healthy food had a 19.5% increase, over the two year study, and higher calorie junk food had a drop in price of 1.8%.

Does this explain the higher rate of obesity among people in lower-income groups? Data shows it’s easier for lower-income people to sustain themselves on junk food rather than fruits and vegetables. Event though there are a lot of fast food restaurants and a lot of convenience foods you still need to strive for good nutrition.

well.blogs.nytimes.com

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Obesity and Bariatric Surgery

Thursday, July 19th, 2007

Not as easy or problem free as they’d have us believe

First, a couple of statistics: in the United States, which has a population of 300 million people, we have over 66 million who are technically defined as “obese.”  This in not a criticism of their character or a slur against them, it’s a physiologic fact.  “Obese” is defined as having a BMI—or Body Mass Index—of 30% or more.  That means that to be obese, one’s body needs to be at least 30% fat by weight—an enormous amount by any measure.

Within this group of obese people is a subset known as the “morbidly obese,” with a BMI of 40 or greater.  These are typically the people who weigh double or more their normal body weight.  For example, a woman who is 5 feet 2 inches tall and weighs 200 pounds, but should weight 110 to be in the normal range, is morbidly obese.  A man who is six feet tall should weigh about 175.  If he is morbidly obese, that means that he weighs at least 280 pounds.  In both cases, these people are at least 80 to 100 pounds overweight.

What are the consequences of being overweight?  The popular press talks about appearance and heart disease, but more subtle and deadly diseases can follow from obesity.  The biggest danger is from diabetes, which can come on because we’re overweight.  This type of obesity-caused diabetes is referred to as Type-II diabetes, as contrasted to Type-I, or “juvenile onset” diabetes.  The former comes from chronic obesity and lack of exercise, while the latter is generally caused by an overactive immune response (generally in childhood) to one’s own body organs.

Now for another statistic (I promise that this is the last one): over 12 million people in the US suffer from Type-II diabetes.  Most of those who do don’t even know that they have it.  They can live with the symptoms for years—symptoms which include

  • Sweating
  • Tiredness
  • Constant thirst
  • Irritability
  • Hunger for sweet things
  • Feelings of faintness

These symptoms occur because Type-II diabetics are producing too much insulin and have too little glucose in their bloodstream.

So how exactly—and without more statistics—does diabetes follow obesity?  The mechanism is pretty straightforward.  Your liver and your pancreas are the key players here.  The stomach digests the food, while your small intestine absorbs the nutrients—everything from sugars and starches to proteins and fats.  The liver converts what the body needs to glucose, while storing the rest as fat.  The liver knows how much glucose the body needs through the signals it receives from the pancreas—signals in the form of insulin.  The more insulin, the more glucose the liver pushes out into the bloodstream. 

When you’re obese, you eat too much all the time.  That means that the liver, overwhelmed, pushes out more glucose than the body needs.  The pancreas, in an effort to keep up with all that glucose, pushes out more insulin than the body needs.  As a result of this “insulin push,” the body’s cells become resistant to the signals.  Insulin-resistant diabetes results.

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“Cures” for Obesity

Thursday, July 19th, 2007

Nothing is a total cure, other than losing weight naturally

We’ve all read about “cures” for obesity, from the fantastic to the unbelievable.  For those of us who are truly overweight—over 30% body fat, defined as “obese”—there seem to be new ways to lose weight through surgery that can help the pounds ‘melt off’ and the patient resume a normal life.  How real is this surgery, and is it as problem-free as we read in the ads?  Two answers: the surgery is very real, and growing, but it is a lifelong commitment that can have serious side effects.  In short, don’t try bariatric surgery unless you’re truly desperate to lose weight.

Why is bariatric surgery so difficult?  First of all, surgery of all kinds—even laparoscopic surgery—is more dangerous than surgery on people at normal weights.  That’s because their bodies are already under more stress, their health conditions not as good.  Then there’s the physical fact that there can be six to twelve inches or more of fat that the surgeon needs to penetrate in order to get to the stomach, before the core part of the operation can take place.

Surgeons take one of three approaches.  The best-known, and most popular, is the Roux-en-Y procedure. That cuts the stomach down to 10% of its normal size, while sending the rest to a shortened small intestine.  As you can imagine, the Roux-en-Y makes it difficult to eat more than a few spoonfuls at a time.  Since the small intestine is smaller as well, there are fewer nutrients absorbed.  The key drawbacks—and these are lifelong—include

  • Vitamin deficiency, as fewer vitamins are absorbed in the small intestine.
  • Continual feelings of nausea and fullness, whether one has eaten or not.
  • 20% of those who receive Roux-en-Y find a way to get around it and get the extra calories, using methods as draconian as putting peanut butter in the microwave and drinking it warm.
  • Over time, the stomach can grow to a larger size, which makes overeating more possible.

The newer laparoscopic bands, known as “lap bands,” do the same thing, but in a more minimally-invasive way.  These operations consist of the surgeon installing a clothespin-like device at the top of the stomach, again closing all but a portion of the stomach to food.  While the lap band procedure can be reversed, it poses many of the problems with the Roux-en-Y procedure.

Finally, the duodenal switch leaves the stomach much larger (and therefore the natural flow of food to the small intestine through the pylorus).  Rather than bypass the food from the stomach, the “switch” takes the bile acids and pancreatic fluids and bypasses a significant part of the small intestine.  Without those juices, fatty foods don’t get absorbed.  This operation is much less drastic, but can still lead to feelings of fullness and nausea in patients, without some of the side-effects related to vitamin deficiency.  There is some suggestion that the duodenal switch operation also reverses the effects of diabetes—an effect that needs further clinical research.

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Soda – A Real Cause of Type 2 Diabetes

Wednesday, July 11th, 2007

Soda CanDo you drink soda? I know most people have at least one a day. The main ingredient in soda is high-fructose corn syrup (HFCS) and in a recent study participants that drank soda had an increase in triglyceride levels and your LDL (That’s the bad cholesterol).

Americans’ have made soda a regular part of their diets. HFCS has been linked to Diabetes, Obesity, and Metabolic Syndrome. The scary part of all this is HFCS is easily metabolized in your fat more than any other sugar.

You may want to consider drinking more water at your next meal and through out the day.

Medscape

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