Similar Cold Stress Induces Sex-Specific Neuroendocrine And Working Memory Responses
OBJECTIVE: The objective was to compare the effect of cold-induced neuroendocrine responses on the performance of working memory sensitive tasks between men and women.
MATERIALS AND METHODS: The cold stress continued until rectal temperature reached 35.5°C or for a maximum of 170 min. Working memory performance and stress hormone concentrations were monitored.
RESULTS: During cold stress, body temperature variables dropped in all subjects (P <0.001) and did not differ between sexes. Cold stress raised plasma epinephrine and serum cortisol levels only in men (P <0.05). Cold stress adversely affected memory performance in men but not in women (P <0.05).
CONCLUSION: The present study indicated that similar moderate cold stress in men and women induces sex-specific neuroendocrine and working memory responses.
Document Type: Research Article
Publication date: March 1, 2015
CryoLetters is a bimonthly international journal for low temperature sciences, including cryobiology, cryopreservation or vitrification of cells and tissues, chemical and physical aspects of freezing and drying, and studies involving ecology of cold environments, and cold adaptation
The journal publishes original research reports, authoritative reviews, technical developments and commissioned book reviews of studies of the effects produced by low temperatures on a wide variety of scientific and technical processes, or those involving low temperature techniques in the investigation of physical, chemical, biological and ecological problems.