QUOTE : After a patient of his with pneumonia coughed in his face, Vink’s energy and endurance quickly tanked. He estimated that from one day to the next he lost 70-80% of the power in his legs. Very quickly this former marathoner was unable to walk 30 yards without having to rest for 15 minutes. He also experienced severe dizziness, headaches (for the first time in his life) and problems sleeping. Graded exercise therapy (GET) caused him to relapse further and he ended up bedridden.