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HIBERNATING HAMSTERS REVERSE LUNG CHANGES

Robert Henning, a pharmacologist from the University of Groningen, The Netherlands, is fascinated by how our bodies react to low temperatures. He and his colleagues explain that human lungs are particularly susceptible to damage: even running in cold air can cause injury. However, hibernating animals routinely experience low body temperatures, in a process called torpor, that would prove fatal to humans. They repeatedly allow their bodies to cool to temperatures barely above ambient, before rewarming briefly and then recooling. Henning and his colleagues decided to find out how hibernating Syrian hamster lungs respond to these low body temperatures (p. 1276).