Showing posts with label TSH and T4. Show all posts
Showing posts with label TSH and T4. Show all posts

Tuesday, October 30, 2007

Just TSH and T4? You've Been Shortchanged!

And the verdict is...Kernel Mustard, in the study, with the lead pipe. Ah, one of my favorite games, Clue. The object of the game is to assemble all the pertinent information to know what's going on without using too many turns. Everyone should hope that their doctor played this as a kid. They will be more likely to run enough test to find out what's going on without running up an unnecessary bill. A doctor that just test TSH and T4 for thyroid function may not have played Clue as a child.

TSH and T4 are lab markers that almost every doctor uses to assess the function of the thyroid and its ability to produce thyroid hormone. Unfortunately, this not only does not give you enough information to make an informed decision, it may lead you to believe things that are completely wrong.

TSH (or thyroid stimulating hormone) can be high when low thyroid hormone (T4 and T3) appears in the report. This is your classic hypothyroid presentation. TSH raises in response to the low thyroid hormone so that it can make more to be used by the body.

Here's the catch. There are other things that can affect the overproduction of TSH. Changes in the weather, time of day, type of foods you eat, amount of exercise you do, amount of toxins exposed to, nutrient depletion, etc. all can change the numbers from the lab. Those numbers can end up all over the place, even if they are taken just hours apart. Here's what that means:

  1. Abnormal levels may be temporarily abnormal in order to deal with what's going on at that moment. This is called a false positive.
  2. Levels that may be abnormal may dip into the "normal" range in order to deal with what's going on at that moment. This is called a false negative.
  3. "Normal" levels may be misleading. What's normal for one is not normal for another. Not to mention that "normal" levels change every so often and from lab to lab. "Normal" is a nice place to start, but is not meant to be set in stone.

The TSH and T4 levels need to be compared to other test (free T3, free T4, reverse T3, reverse T4, axillary body temperature, iodine testing, hormone testing, adrenal testing, toxicity testing, detoxification testing, insulin sensitivity, neurotransmitter levels, nutrient concentration, serum ferritin levels, physical exam findings, physical presentation, pertinent history, family history, symptom survey, or anything else that is relevant...but not anyone in particular or all of them either).

Not everyone needs tons of testing, but there are clues to look for that will help you find more clues as to what is going on. You'll never know who did it, with what and where with just the bare minimal testing, or TSH and T4.






Saturday, October 27, 2007

Hypothyroidism: Weight Loss Most Poorly Understood Road Block

Would you like to be shocked? Well, unless you live under a rock you may not really be surprised at all. In America, around 2/3 of us are overweight. It is estimated that around 60% of those people suffer from hypothyroidism. Weight loss for these people is really an
uphill struggle for multiple of reasons. Here are a few:

  1. Counting calories to lose weight is the most popular way people are told to diet. Did you know that overly restricting your daily calories actually slows down your metabolism? This goes against a hypothyroidism weight loss program.
  2. Long bouts of cardio is the exercise program most people are told to do to lose weight. Burn calories, burn fat...Right? Did you know that excessive cardiovascular exercise causes an increase in cortisol, which in turn slows metabolism and makes your body demand that you create an energy reserve (also known as body fat) around your abdomen? Again, not recommended in a hypothyroidism weight loss program.
  3. People don't even know they have hypothyroidism. Their doctors may not be able to properly identify it for them either. Relying solely on TSH and T4, prescribing therapy that does not address the problem and lack of time spent with the patient to properly inform them are major reasons why this problem isn't getting addressed. Unfortunately, you were not given a hypothyroidism weight loss program.

How does all that play out in real life? See if this scenario seems familiar:



It's New Years and you decide after one last night of fun/debauchery, you are going to finally lose those pounds that have all of a sudden crept up on you. Your plan of attack...eat less and work out more.

Now fast forward to June. As you stand on the scale after 6 months of grueling
exercise and a borderline malnourished dieting, you are in complete disbelief
that you have actually gained 8 pounds.

Discouraged and a little worried, you go to see your doctor for help. The doctor runs a thyroid panel on you to see if there is anything wrong. "Your TSH and T4 are within normal limits, so you do not have a thyroid problem."


But what if you did have hypothyroidism missed by your doctor (since testing just TSH and T4 is very incomplete testing)? More than likely, you will not do the things you should to address this problem with your endocrine system.

So you are left to figure this out yourself. Now what? Do you live with it, exercise more or eat less? Maybe you should start skipping breakfast and switch to diet soda.

Or maybe you could stop sabotaging yourself, making matters worse.

While I agree that exercise and reasonable caloric intake are steps to helping, but only if they are applied correctly. They need to be setup in order to address the major road block...the underlying issue of hypothyroidism. Weight loss will not be achieved on a permanent basis until you start a hypothyroidism weight loss program.

My advice: Learn how to address your thyroid problems from a reputable source...then do it.