Please tell me what is adrenal disease and what causes these?

BIG question!: Too much cortisol or too much aldosterone, too little aldosterone and/or cortisol, too much catecholamine, androgens, and/or cancers. Holy cow! Big question! Cushing's, primary hyperaldosteronism, secondary hyperaldosteronism, Addison's, secondary adrenal insufficiency, congenital adrenal hyperplasia (classical & non-classical), pheochromocytoma, various malignancies, hemorrhage/infarct. Big topic