Workplace stress may increase breast cancer
The study between in 1990 and 2004 surveyed volunteers who were active in the workforce. It revealed that 767 of the volunteers had been diagnosed with breast cancer. It was shown that full-time working women in stressful jobs were 30 percent more likely to develop breast cancer, but that there was no link between stress and breast cancer in part-time workers. Research suggests that stress may be linked to an increase in estrogen which increases the risk of cancer.