Human thermoregulation is a complex, integrative, and ultimately autonomic physiological
phenomenon. The goal of this special issue of Autonomic Neuroscience: Basic and Clinical is to give clinicians and scientists a set of brief updates regarding integrative
physiological mechanisms of thermoregulation relevant to humans. In terms of physiological
thermoregulation, three general categories of environments exist: cold, thermoneutral
and warm/hot. In cold environments, thermoregulatory responses are oriented towards
conservation of heat (cutaneous vasoconstriction) and heat generation (shivering and
non-shivering thermogenesis) (
Castellani and Young, 2016
,
Morrison and Madden, 2014
). In thermoneutral environments, by definition, very little active regulation of
body temperature is required, as heat production equals heat dissipation and body
temperature remains relatively constant. In humans, the minor adjustments in heat
dissipation required in such environments are accomplished by small changes in skin
blood flow (
Savage and Brengelmann, 1996
). In warm or hot environments, the emphasis is on heat dissipation, which occurs
by two major mechanisms, cutaneous vasodilation (in which increased skin blood flow
increases convective heat transfer from the core to the periphery) and sweating (in
which evaporative heat loss cools the skin and increases heat transfer from the surface
of the skin to the environment) (
Charkoudian, 2010
,
Johnson et al., 2014
,
Smith and Johnson, 2016
).Keywords
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References
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Article info
Publication history
Published online: February 21, 2016
Accepted:
February 12,
2016
Received:
February 11,
2016
Identification
Copyright
© 2016 Published by Elsevier B.V.