Youth athletes are at risk of heat illness during intense physical activity in hot and humid conditions, especially if they are not acclimated to the heat or properly hydrated. Exertional heat stroke can lead to severe organ damage or death if not treated promptly. Risk factors include poor conditioning, heavy uniforms, limited access to water, and multiple practices in a short period. Early recognition of symptoms such as confusion, dizziness, or excessive fatigue is essential to prevent severe outcomes. Coaches and parents must be vigilant and prepared to act swiftly in emergencies.