Are you ever so exhausted that it is hard to move? Do you lose energy after exertion or stress, and have to spend time recuperating in order to be able to recognize yourself again? What do regular exhaustion and chronic fatigue have in common, and where do they differ? What role do cortisol and cortisol depletion play in our energy stores and resilience? And why are some people implicating the hypothalamus in questions of fatigue? Join Sarah for an in-depth exploration of this matter.