Breast calcification is a common finding in mammogram
. Most of the time it is benign process but sometimes this can be due to cancer.There are 2 types of calcification. Macrocalcification is usually benign and needs no further test but microcalcification can be benign which is the case in 80% of lesion or can be cancerous.
So for confirmation or if it looks doubtful you have to do repeat mammogram or biopsy
It is good that you have undergone biopsy an it will give you definite answer.
Although it is not directly related to stress
, reducing fat rich diet helps in reducing risk of breast cancer