Female Mice Prefer Warmer Spaces Due to Higher-Tuned Temperature Sensors, Study Finds

Female mice consistently choose warmer environments than males, and researchers at King's College London have now uncovered why: their nerve cells contain two types of temperature sensors that are tuned to activate at higher temperatures. The study, led by the Wolfson Sensory, Pain and Regeneration Centre at the Institute of Psychiatry, Psychology & Neuroscience (IoPPN) and published in The Journal of Physiology, provides a molecular explanation for a sex difference observed across all mammals studied so far, and even in birds. The findings suggest that female-specific sensory tuning may influence comfort, thermoregulation, and potentially health outcomes, making it a key factor in how animals interact with their environment. By pinpointing the exact ion channels involved, the research opens doors to understanding sex-based differences in pain perception and temperature-related disorders in humans. This discovery could eventually inform personalized approaches to managing conditions affected by temperature sensitivity.