What are the symptoms of heat stress?
Milder symptoms of heat stress in adults include dry lips, excessive thirst, excessive sweating, weakness or dizziness, nausea and vomiting, blisters and rashes, fever, and muscle cramps, according to Unicef. Severe symptoms include confusion, seizures, fainting, no urine in over eight hours or dark urine, and a rapid heartbeat. A body temperature exceeding 104°F (40°C) can also be a sign of heat stroke. If you or someone you know experiences severe symptoms, you should go to the hospital immediately.
Milder symptoms in infants include heat rashes in their diaper area, irritability, and crying. Severe symptoms include crying without tears, extreme irritability, fewer wet diapers, vomiting or diarrhoea, and sunken eyes or forehead.
You should not give infants medication if they show signs of becoming overheated without consulting a health provider, Unicef notes.