We recommend that all ME/CFS and Fibromyalgia patients have a NASA 10-minute Lean Test to assess for orthostatic intolerance. Batetman Horne Center The saga of the effort to introduce and validate the NASA Lean Test (NLT) for ME/CFS just seems so right in so many ways. First the Bateman Horne … Continue reading NASA Lean Test: An Easy Way to Diagnose Orthostatic Intolerance in ME/CFS, Fibromyalgia and POTS