Can emotional distress cause breast cancer to grow faster?

Maybe.: If you asked me this question 2 weeks ago, i might have had a different response. A new study released last week demonstrated a significant correlation between women's stress levels and the aggressiveness of their breast cancer. Of course, it is hard to know "which came first, the chicken or the egg". Nevertheless, common sense would suggest that stress is never good when battling any illness.

Possible: Studies have looked personality traits and cancer survivals. Those patients with a positive outlook tended to have more favorable outcomes.