White-collar workers fight to sleep better (4/4)

A training class to help trainees sleep better opens in Changsha of central China's Hunan province on May 26, 2014. Run by a man named Tang Tang, it's the first one of its kind in Changsha. According to Tang, the trainees are all white-collar workers and his trainings help them release pressure and achieve deep sleep through exercises, self-relaxation and listening to music. [Photo: China News Service / Yang Huafeng]