GHRL and myalgic encephalomeyelitis/chronic fatigue syndrome: The sequence between intestinal injury, ghrelin secretion and GH release by the pituitary could be particularly relevant for solving ME/CFS given that “several of the main typical symptoms in severe ME/CFS, such as fatigue, myalgia, contractility, delaying muscle recovery and function, exertional malaise, neurocognitive dysfunction, and physical disability may be related to severe GH deficiency” (111).