<p>This article develops a&#xa0;sociological perspective on sweating. Instead of understanding it as a&#xa0;purely biological reaction, the article examines sweating as embedded—that is, as component and effect of—power relations. Through an examination of Nicole Starosielski’s concept of thermal violence and its model case of the sweatbox, the limits of the violence framework are shown when it comes to capturing everyday thermal power dynamics. To account for the environmental and material dimensions of sweating, the article critically engages with Karen Barad’s concept of intra-action, highlighting its implications for thermal phenomena. Building on this, the concept of thermal intrasubjectivity is introduced to analyze the power effects of sensory processes. This concept captures the simultaneous processes of, on the one hand, desubjectification through heat as well as, on the other hand, subjectivation by way of the fixating effects of thermal exposure. Drawing on historical examples, the paper outlines the difference-producing effects of sweating, including its role in the organization of physical labor, gendered hygiene regimes, and racializing discourses. Such power relations are embedded in sensory environments—an issue of growing urgency in the context of escalating heat waves.</p>