Ouyang Juan started to grow long hair when she was 18 years old. Her hair is 1.72 meters long when she was 32 years old. It usually takes her 10 minutes to wash long hair and 30 minutes to dry long hair under sunshine. It takes her 10 minutes to make long braid, and 30 minutes to make bun. Her mother and sister also keep super long hair about 1.7 meters.