Being overweight or obese and inactive are risk factors for breast cancer and for recurrence of the disease. For patients with hard-to-treat triple-negative breast cancer, it’s especially important to maintain a healthy weight and exercise regularly.

Triple-negative breast cancer is a subtype of breast cancer that lacks the three receptors known to cause most breast cancers: estrogen receptors, progesterone receptors and human epidermal growth factor receptor 2 ( HER2 ). Because of this triple-negative tumors do not respond to receptor-targeted treatments. They do, however, respond to chemotherapy. This type of cancer can be aggressive and is more likely to recur than other types of breast cancer.

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