Every time the automatic doors open, a violent wave of heat surges into the lobby. But once you step inside, it is a sterile, otherworldly realm maintained at a low temperature. In the chilled examination room, I feel the coldness in my fingertips as I tap at the keyboard, gazing out the window. Beyond the thick, light-shielding glass, heat haze must be shimmering off the asphalt and the cicadas' chorus must be pouring down. But that frenzy doesn't reach here. All that can be heard is the low hum of the air conditioning and the dry sound of nurse shoes clicking through the hallway.