It turns out that many of the lifestyle behaviors that help you fight off breast cancer can also help you avoid heart disease.
Think of it as a “double win,” says cardiologist Dr. Ana Barac, director of the cardio-oncology program at MedStar Heart and Vascular Institute in Washington, D.C.
Such a win could benefit a substantial number of women. In the U.S., an estimated 9.1 million have coronary heart disease, and heart disease overall is the leading cause of death for women, especially among Black women. In 2019, about 3.8 million women in the U.S. were living with breast cancer, with an estimated 43,250 deaths expected this year.
While some risk factors, such as age and family history, cannot be changed, here are five things you can do to lower your risk for both conditions.
To prevent heart disease and breast cancer, the American Heart Association and American Cancer Society offer similar guidance for an ideal diet, which includes eating a variety of fruits and vegetables; choosing whole grains rather than refined grain products; avoiding processed meat, and limiting added sugar.
Even for women already diagnosed with breast cancer, “diet is a huge part of staying healthy,” Barac says. Evidence suggests an association between a healthy diet and an improved breast cancer prognosis. For example, a 2020 study in the Journal of Clinical Oncology found that reducing fat intake and increasing vegetable, fruit, and grain intake may reduce the risk of dying from breast cancer in postmenopausal women.
More clear-cut, though, is the data for cardiovascular disease, Barac adds. “We have strong evidence that in people with cardiovascular disease, including coronary heart disease, eating a healthy diet improves outcomes.” A 2020 analysis in the journal Nutrients found people with cardiovascular disease who followed a Mediterranean diet – focusing on vegetables, fruits, legumes, nuts, olive oil, whole grains and fish – had a lower risk of dying from any cause, including cardiovascular disease.
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Obesity is a risk factor for cardiovascular disease, as well as for breast cancer after menopause, according to a 2018 AHA scientific statement about cardiovascular disease and breast cancer.
Body mass index, or BMI, is a calculation of height and weight that determines a person’s weight category. Obesity is defined as
a BMI of 30 or greater.
At least 150 minutes a week of moderate-intensity aerobic exercise, such as brisk walking, is recommended for adults. Unfortunately, federal survey data show only about 1 in 5 U.S. women say they meet that requirement. And research suggests getting less than the recommended amount of physical activity each week is associated with an elevated risk for both cardiovascular disease and breast cancer.
Sedentary time poses the same risks.
“If you are sitting for a long time, you need to get up and walk around,” even if you exercise that day, says Dr. Tochukwu Okwuosa, a cardiologist and associate professor at Rush Medical College in Chicago. Getting up every hour for even a minute or two will benefit the body, she shares.
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The takeaway here is moderation for those who drink alcohol – and not starting for those who don’t. Moderation means no more than one drink a day for women, according to the AHA and cancer society.
And “make sure you don’t binge,” Okwuosa says. For women, binge drinking typically translates to four or more drinks in a two-hour period, according to the National Institute on Alcohol Abuse and Alcoholism.
Excessive drinking can increase the risk for liver disease, breast cancer and a range of cardiovascular problems, including high blood pressure, heart disease and stroke.
Okwuosa says women also should be aware of the risks associated with postmenopausal hormone replacement therapy, which has been
linked to an increased risk of breast cancer and cardiovascular disease.
If you have a history of breast cancer or any cardiovascular disease, or the more risk factors you have, “then the chance that hormone replacement therapy could be not a good thing for you is higher,” Okwuosa adds.
Talk to your healthcare team about the risks and benefits of options for managing menopause symptoms to find the best treatment strategy for you.
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Knowing if you have high blood pressure, high cholesterol or diabetes – and then working with a health care professional to treat it – can help prevent those conditions from causing heart disease and other cardiovascular conditions.
The AHA advises blood pressure screening for adults at each regular healthcare visit or once a year if blood pressure is normal. It also recommends cholesterol screening every four to six years, starting at age 20, for adults at normal risk for heart disease and stroke, or more often for those at elevated risk. For diabetes, the American Diabetes Association recommends screening starting at age 35, or sooner for those at elevated risk.
Although mammograms cannot prevent breast cancer, they can help detect it early. For women at average risk for breast cancer, the cancer society recommends annual mammograms starting at age 45, with the option to start at age 40. Women 55 and older can switch to every other year or can choose to continue yearly mammograms.
Knowing your family history for breast cancer and cardiovascular problems is a big part of determining when and what type of screening you might need, Barac says.
Overall, she adds, once healthcare professionals understand your personal and family medical history, “we can use lifestyle medicine, in particular exercise and diet, to empower women and prevent cancer and heart disease.”
By the American Heart Association
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