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The 20th voyage of the Arctic Floating University scientific and educational expedition is currently underway, with researchers analyzing how participants adapt to the harsh conditions of the high-latitude Arctic. According to TASS, the expedition began working in the Barents Sea on July 7, studying heart rate variability, hormone levels, mental and emotional conditions, and sleep quality.

Coverage comparison

TASS, the Russian state news agency, has published two reports on the expedition. The first, dated June 25, focused on the pre-departure phase in Arkhangelsk, where a comprehensive survey of participants began before the ship set sail. The second, dated July 7, reported that the expedition had commenced its research activities at sea. Both reports emphasize the scientific nature of the work and quote researchers involved in the project.

Key claims

  • The Arctic Floating University expedition started working in the Barents Sea, analyzing participants' adaptation to Arctic conditions, as reported by TASS.
  • Researchers are studying heart rate variability, hormone levels, mental and emotional conditions, and sleep quality, according to TASS.
  • The expedition includes tests to determine DHEA/cortisol and testosterone/cortisol indices, which are used to assess the body's adaptive reserves, TASS reported.
  • The 20th voyage of the Arctic Floating University runs from July 1 to July 22, 2026, according to TASS.
  • The expedition is organized by the Lomonosov Northern Arctic Federal University and the Northern Department for Hydrometeorology and Environmental Monitoring, TASS reported.
  • A comprehensive survey of expedition participants began in Arkhangelsk, TASS reported in late June.
  • For the first time, the expedition is surveying sleep quality, using a new questionnaire to assess sleep before, during, and after the voyage, as reported by TASS.
  • The study of human adaptation to high-latitude Arctic conditions is being conducted by Alexandra Yelfimova, a senior researcher at the Endocrinology Laboratory of the Professor Tkachev Federal Research Center for Comprehensive Arctic Studies (Russian Academy of Sciences' Urals Branch), according to TASS.
The research, as described by TASS, involves collecting samples of morning and evening saliva and venous blood at several control points to monitor levels of cortisol, testosterone, and dehydroepiandrosterone (DHEA). The expedition is also studying anxiety levels, concentration of voluntary attention, and heart rate variability at rest and during orthostatic testing. Participants are keeping daily sleep diaries for the first time.

In a statement quoted by TASS, Yelfimova noted that people exploring the Arctic are exposed to difficult climatic, ship, and social conditions. "Therefore, it is of fundamental importance to develop methods aimed at studying the body adaptation processes and at offering measures to maintain appropriate adaptability of researchers to working conditions," she said. The expedition includes both veterans of previous voyages and first-time participants, allowing researchers to monitor individual adaptation dynamics.