Turning Up the Heat

"Mama, why does heat make you so tired?"

We crossed the street and headed into the art festival. We're heat-hardy, my daughter and I, indiginous to the sultry Midwest summers like goldenrod and cone flowers. The 105-degree temperature didn't stop us from wanting to look at paintings until we hit the pavement, where temperatures had to be even higher. And the humidity, thick like a washcloth, making it hard to breathe.

"I'm not sure, exactly. Maybe so you'll be forced to slow down and it will...