Instructions: Take extra precautions, if you work or spend time outside. when possible, reschedule strenuous activities to early morning or evening. know the signs and symptoms of heat exhaustion and heat stroke. wear light weight and loose fitting clothing when possible and drink plenty of water. young children and pets should never be left unattended in vehicles under any circumstances. this is especially true during warm or hot weather when car interiors can reach lethal temperatures in a matter of minutes.