David Degroot

An NEJM Evidence Review article summarizes the best practices for the prevention, recognition, and management of exertional heat illness. Key Points Clinicians should view exertional heat illness (EHI) as a spectrum ranging from heat exhaustion to exertional heat stroke (EHS), with EHS defined by central nervous system dysfunction, severe hyperthermia, and organ injury. However, clinical progression is not always linear as EHI can escalate abruptly to EHS.