Study: Stress Increases Cancer Risk

Stress can increase the risk of cancer.  

A study out of Japan looked at thousands of men and women between 1990 and 2012.  

For those who reported a lot of stress or a marked increase in stress, the risk of developing cancer was 20 percent higher. 

Researchers saw particularly high cases of liver and prostate cancer.  

The study suggests that stress could weaken the immune system.  


Photo: Getty Images

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