Indicators of sympathetic nervous system overactivity in hypertensives. Lynne T. Braun 10027/15518 https://indigo.uic.edu/articles/thesis/Indicators_of_sympathetic_nervous_system_overactivity_in_hypertensives_/10933349 Indicators of sympathetic nervous system overactivity in hypertensives. 2014-03-18 00:00:00 Biology, Neuroscience.