ArticleScientific reports2026
Age-related patterns in tongue thermal response to cold stimulus assessed by infrared thermography.
Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Tissue surface temperature may be influenced by physiological processes related to microcirculation and vascular regulation. Due to its rich vascularisation and thin epithelial layer, the tongue may serve as a sensitive site for assessing dynamic thermal responses. This study aimed to quantitatively evaluate the tongue's response to a cold stimulus using infrared thermography and to analyse its relationship with age in healthy adults. An observational study was conducted in 117 volunteers aged 18-64 years. Tongue temperature was measured at baseline, immediately after cold exposure (20 ml of water at 8 °C for 60 s), and after 2, 5, and 10 min. Baseline temperature, as well as absolute and relative indices of temperature recovery, were analysed across three predefined regions of interest. A statistically significant association was observed between age and both baseline tongue temperature (r = - 0.21, p = 0.024) and post-stimulus thermal dynamics, including temperature changes 2 min after stimulation (r = 0.33, p = 0.0002) and relative recovery indices (W
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