Is adrenal burnout a myth?

Adrenal burnout, as often discussed in popular health discourse, is considered a myth by Andrew Huberman. He emphasizes that the adrenal glands have enough capacity to handle stress for a vastly extended period — theoretically supporting up to 200 years of stress without "burning out". The misconception of adrenal exhaustion originates from outdated theories and has been perpetuated in public discussions inaccurately. Instead, what exists is a condition known as adrenal insufficiency syndrome, which is a genuine physiological issue but distinct from the concept of adrenal burnout. Dr. Huberman also clarifies that while chronic stress may lead to feelings of exhaustion, it does not cause the adrenal glands to burn out 1 2.