The death of a 27-year-old actress from uterine cancer has aroused public awareness of the disease, as research shows the rate of some kinds of that cancer is on the rise.Song Wenfei died on Sunday morning at home in Guangzhou. Zhang Lingzhi, Song's close friend and co-star in the TV series Dancer, first reported the death on her micro blog.Zhang told a program on Shanghai TV on Monday that Song was first diagnosed with uterine cancer in 2011 but kept working on her TV series until May.Zhang said in the interview that doctors suggested Song immediately have surgery, but she refused and returned to work after receiving treatment.Zheng Hong, a gynecologist at Beijing Cancer Hospital, said cervical cancer and cancer of the uterus are the two most common types of uterine cancer."Uterine cancer (cancer of the uterus) mostly occurs in women aged 50 to 60, and cervical cancer mostly in those aged 40 to 50," she said. "A woman should check her uterus annually. Those who have had sex should do a gynecological test. Those who haven't should get an ultrasound scan."Chen Wanqing, deputy director of the National Central Cancer Registry, said the incidence of uterine cancer, especially cervical cancer, is on the rise in China.The occurrence of uterine cancer has as much to do with lifestyle as it does with sex, including obesity and a lack of exercise, experts said.One's mental state also plays a role in causing tumors, because long-term unrelieved mental stress weakens the immune system and increases the odds of getting cancer, Chen said.In March 2012, Song said on her micro blog that she went to a hospital in Beijing because she was "increasingly worried" about her body due to "high pressure from work and life".