How long can heat stroke symptoms persist if not treated?

Heat stroke is a serious condition that occurs when the body's temperature regulation fails and temperature rises to a dangerous level, leading to damage to the central nervous system and other vital organs. If not treated promptly, the duration of heat stroke symptoms can indeed vary significantly based on the severity of the heat-related illness.

The severity can influence how long symptoms like confusion, loss of consciousness, or severe fatigue last. In less severe cases, symptoms might resolve in a matter of hours if the individual is properly hydrated and cooled down. However, in severe cases, untreated heat stroke can lead to long-lasting effects on health or even be fatal, with symptoms persisting for days or causing permanent damage.

Thus, selecting "can vary significantly based on severity" underscores the uncontrolled and potentially life-altering outcomes of heat stroke, illustrating the importance of immediate medical attention.