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Answer to your Health Question

Question:

What is the difference between hypothyroidism and hyperthyroidism?

Louis

Answer:

Dear Louis,

Thyroid hormone (collectively T3 and T4), produced by the thyroid gland, is the single most important hormone influencing the rate of cellular metabolism and body heat production.

Under conditions of excess thyroid hormone production (hyperthyroidism), an individual's basal metabolic rate (BMR), heat production, and oxygen consumption increase, and the individual tends to lose weight and become heat-intolerant and irritable.

Conversely, hypothyroid individuals become mentally and physically sluggish obese, and are cold-intolerant because of their low BMR.



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