Endocrinology & MetabolicPending review

Hyperthyroidism

A state of thyroid hormone excess that accelerates metabolic rate across almost every tissue, so the clinical picture (weight loss despite hunger, heat intolerance, tachycardia and tremor) can be derived directly from asking what a sped-up metabolism looks like.

First principles

Thyroid hormone excess is metabolism running too fast, mirroring hypothyroidism in reverse

Just as thyroid hormone deficiency slows basal metabolic rate, excess accelerates it: increased oxygen consumption, heat production and catabolism of fat, muscle and bone. Because this drive touches nearly every organ, the resulting symptoms span cardiovascular, neurological, gastrointestinal and dermatological systems simultaneously, a single mechanism expressed everywhere at once.

You’ve reached the end of the preview

The rest of the extended textbook — mechanism, differentials, complications and prognosis — is part of full access. Sign in to see your options.

Educational content pending clinical review. Not medical advice.