2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/46956The possibility of symmetry non-restoration at high temperature is explored in a strongly interacting Higgs system described by an effective Chiral Lagrangian. Despite a na\"ıve perturbative hint of symmetry non-restoration when the temperature is increased, non-perturbative methods point towards symmetry restoration. (Contribution to the XXXIInd Rencontres de Moriond, "Electroweak Interactions and Unified Theories")4 pages, 1 figure included. LaTeX, epsfHigh Energy Physics - PhenomenologyHeavy Higgs: Is the Gauge Symmetry Restored in the Early Universe?text