• When you step outside on a winter morning or pop a mint into your mouth, a tiny molecular sensor in your body springs into action, alerting your brain to the sensation of cold. • Scientists have now captured the first detailed images of this sensor at work, revealing exactly how it detects both actual cold and the perceived cool of menthol, a compound derived from mint plants.

Article Summaries:

  • Scientists have produced the first high‑resolution images of the TRPM8 ion channel, the molecular sensor that lets the body detect both real cold temperatures and the cooling sensation of menthol. Using advanced cryo‑electron microscopy, researchers captured the channel in its active state, revealing how it opens in response to low temperatures and to menthol molecules derived from mint. The study clarifies the structural basis for temperature perception and explains why menthol feels cool even when it does not lower ambient temperature. These findings deepen understanding of sensory biology and could inform the design of new analgesics and cooling agents.

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