HEFEI, Nov. 15 (Xinhua) -- Every night before going to bed, Wang Junran relaxes by listening to music, drinking a cup of herbal tea and using a massager to soothe her stiff neck.
The 29-year-old engineer, who lives in Hefei, capital of east China's Anhui Province, has been ending her day this way since earlier this year when tremendous pressure disrupted her circadian rhythm, making it difficult to fall asleep.
