As summer temperatures rise, so does the risk of heat-related illnesses. Many people assume that dehydration and heat stroke are part of the same spectrum, but they are very different in terms of severity, symptoms, and necessary treatment. In this in-depth guide, the medical team at Amista explains how to distinguish between mild dehydration—often resolved with fluids and rest—and life-threatening heat stroke, which requires immediate emergency care. You’ll learn to recognize critical symptoms such as high body temperature, disorientation, dry skin, and rapid breathing, and understand why quick intervention can be life-saving. We’ll also share practical prevention tips for families, outdoor workers, athletes, and the elderly to stay safe during hot weather.