Older people can have a tougher time dealing with heat and humidity. The temperature inside or outside does not have to be high to put them at risk for a heat-related illness.
Headache, confusion, dizziness, or nausea could be a sign of a heat-related illness. Go to the doctor or to an emergency department to find out if you need treatment.
Find out more at the Victorian Government, Better Health Channel, Heat and Older People