As someone who has lived in hell (Phoenix, Arizona--though far enough out that we learned how to change our schedules to fit the weather and avoid most of the cement) and who currently lives in Heaven (Vermont) you have my sympathy Aine. Try a cool washcloth hung around the back of the neck. It cools the blood a bit and hence the whole bod. Me? I was picking wild blueberries in the pouring rain this morning. once we were wet why bother to quit? I'll try to send you rain if you promise not to send me heat.