Inside Grand Central nightclub, the lights are dim and the music is pulsing. On the dance floor, beat freaks jump, bounce, and flail to the rhythms of a live DJ. In the corners of the room, onlookers belly up to the bar and sip their drinks. Every so often, the music swells and the dancers go wild in a burst of energy that leaves them sweaty, throbbing, and spent. But this isn’t a typical 2 a.m. club night. Outside the doors of the club, the sun is just beginning to set. And these dancers aren’t wasted; they’re high on... More >>>