Watch Nisha Charkoudian, PhD for the first event in the 2023 Neurophysiology Series as she summarizes the integrative physiology of responses to exercise-heat stress and discusses implications for athletes and the military.
The autonomic nervous system has important roles in the regulation of body temperature and blood pressure in humans. The integration of these responses becomes even more complex when a person begins to exercise and/or is exposed to high environmental temperatures (exercise-heat stress). The common experience of feeling lightheaded or dizzy in the heat is an example of the challenges this poses to physiological regulation. Interestingly, female reproductive hormones have significant influences on autonomic regulatory pathways that control both body temperature and blood pressure. Although much work remains to be done in these areas, there appear to be some advantages for women in terms of adaptive responses to heat stress, whereas in other areas men may have advantages over women.
Presenters

Nisha Charkoudian
Dr. Nisha Charkoudian earned her Ph.D. in Cardiovascular Physiology in 1999 from the University of Texas Health Science Center at San Antonio. She completed postdoctoral training at the Mayo Clinic in Rochester, MN, and joined the Mayo Clinic faculty in the Department of Physiology & Biomedical Engineering in 2003. In 2011, Dr. Charkoudian joined the US Army Research Institute of Environmental Medicine (USARIEM) in Natick, MA as a Research Physiologist. She became Chief of the Thermal & Mountain Division (TMMD) in 2022.
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Federation of European Neuroscience Societies
Federation of European Neuroscience Societies (FENS) is the voice of European neuroscience.
Founded in 1998 at the first Forum of European Neuroscience, the FENS is the main organization for neuroscience in Europe. FENS currently represents 44 national and single-discipline neuroscience societies across 33 European countries and more than 22,000 member scientists.
FENS promotes neuroscience research to policy-makers, funding bodies and the general public, both regionally and internationally. FENS promotes excellence in neuroscience research and facilitates exchanges and networking between neuroscientists within the European Research Area and beyond. FENS was created to bring together the scientific community and advance research and education in neuroscience in Europe and beyond.
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American Autonomic Society
The American Autonomic Society (AAS) has been established to bring together individuals from diverse disciplines who share an interest in the structure and function of the autonomic nervous system and in the pathology, treatment, and prevention of its disorders. The Society sponsors annual meetings and provides a point of contact among the many interested clinical and basic scientists who wish to communicate across disciplinary lines.
The AAS began informally in 1990 at Vanderbilt University in Nashville, Tennessee. Important motivating force for the initial meeting were Dr. David Robertson and Ms. Dorothy Trainor-Kingsbury (Shy-Drager Support Group). The Society was formally established in 1992, and Dr. Robertson became its first president. The broad aim of the AAS is to provide a vehicle for investigators and clinicians interested in the autonomic nervous system to interact. It aims to promote research, education, and the academic practice in the autonomic disorders. The Society has escalated in its membership, successfully obtained tax-exempt status, adopted a formal charter, and has its own journal (Clinical Autonomic Research).
The Society has an American infrastructure but a strongly international character. Its membership is open to persons of all countries who share the same interests. During the past quarter century, the AAS has expanded from less than 50 members in 1992 to over 150 members today, focusing on both clinical and basic science, and has taken on a new role in the education of physicians in autonomic disorders. The collegial atmosphere and ongoing collaborative efforts has sparked several important discoveries that directly impact the lives of people with autonomic disorders. Partnerships with support groups have expanded the reach of the AAS into the public eye, while partnerships with industry have culminated in approval of new therapies for people with autonomic disorders.

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