The study also suggests that feeling happy and optimistic
may reduce the risk of developing cancer. The survey involved 255 breast cancer
patients and 367 healthy women aged 25 to 45.
Researchers from the Faculty of Health Sciences at Ben-Gurion University
of the Negev, Israel
questioned the women regarding their life experiences like levels of happiness,
optimism, anxiety and depression.
All these were evaluated before they were diagnosed with
cancer. The researchers report that suffering two or more adverse events
increased the risk of developing breast cancer by 62 per cent. However women
who were generally happy had 75% reduced risk of developing cancer.
"Young women who have been exposed to a number of
negative life events should be considered an 'at-risk' group for breast cancer
and should be treated accordingly," said study leader Dr Ronit Peled.