E2 ModerateCohortPEM not requiredCross-Sectional
Autonomic function in patients with chronic fatigue syndrome.
Soetekouw, P M, Lenders, J W, Bleijenberg, G et al.·Clinical autonomic research : official journal of the Clinical Autonomic Research Society·1999
Researchers tested whether ME/CFS patients have problems with the part of the nervous system that automatically controls heart rate and blood pressure. They compared 37 ME/CFS patients to 38 healthy people using several tests (like standing up quickly, holding their breath, and doing mental math). The study found only minor differences, suggesting that major autonomic problems may not be the primary issue in ME/CFS, though some specific responses to stress were reduced.
Autonomic Nervous System