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Myth: T4 is the most important thyroid hormone

Thyroxine or T4 is the most important thyroid hormone, and everything depends on its blood test levels being within a certain range.

FALSE. Actually, there was once a boy who was born without any thyroid function, and he was started on T3 instead of T4. He grew and developed normally and passed easily into adulthood without ever having a molecule of T4 in his body.

About the Author:

Denis Wilson, MD developed the concept of Wilson 's Temperature Syndrome in 1988 after observing people with symptoms of low thyroid and low body temperature, yet who had normal blood tests. He found that by normalizing their temperatures with T3 (without T4) their symptoms often remained improved even after the treatment was discontinued.

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