Alexandre Chagnon · 7 years ago
There are many causes of hyperthyroidism. Some are autoimmune in origin (i.e. the body "attacks" its own organs), while others are of central origin, i.e. the glands that produce the hormones are working in an accelerated manner. In any case, I do not see in the references consulted a direct link between deficient adrenal glands and the onset of hyperthyroidism.