At Shred415, our mission has always been to help people discover the power of movement. During Breast Cancer Awareness Month, we are highlighting the critical connection between exercise and breast cancer. Research continues to show that exercise is not only safe, but also one of the most effective ways to fight cancer and reduce recurrence.
Exercising muscles pump out substances that can suppress the growth of breast cancer cells, according to new research. A recent study found that just one session of interval training or weightlifting created powerful molecular signals in the blood that slowed, and in some cases stopped, breast cancer cells from growing. These findings build on a growing body of evidence that physical activity plays a direct role in both preventing cancer and supporting survivors after treatment.
Read more about the science behind exercise and cancer from the Institute of Cancer Research, Cancer Treatment Centers of America, and The Washington Post.
Can You Exercise With Breast Cancer?
Yes. In fact, experts say it should be encouraged. While treatments such as chemotherapy and radiation can leave patients fatigued, studies show that exercise helps restore energy, improve mood, and build resilience. According to Memorial Sloan Kettering Cancer Center, tailored programs including high-intensity interval training (HIIT) are safe and beneficial for breast cancer survivors.
At Shred415, our workouts combine cardio intervals and strength training, designed to meet you where you are. Many of our instructors and members, like Abby Tieman, have powerful stories of resilience that inspire our community every day.

How Does Exercise Fight Cancer?
Contracting muscles release proteins and biochemicals called myokines, which circulate through the bloodstream. These myokines act like natural medicine, influencing immune response and directly suppressing cancer growth. In one study, plasma taken after high-intensity interval training slowed or even killed breast cancer cells in the lab.
In other words, exercise breast cancer research now shows us that movement is more than just fitness. It is a biological signal that tells cancer to stop.
How Exercise Reduces Cancer Risk
Large studies show that breast cancer survivors who engage in regular physical activity have lower recurrence rates and better survival outcomes. The benefits are not limited to breast cancer. A landmark colon cancer study showed exercisers were 37 percent less likely to experience recurrence than those who did not.
At Shred415, we bring this science to life by creating challenging yet supportive workouts that empower members to take control of their health.
Can Cancer Patients Exercise Safely?
Yes, with guidance. Oncologists often recommend exercise as part of a comprehensive cancer care plan. From fast-paced walking to strength training, the key is to find a program that can be adapted to each individual’s needs and energy levels.
At Shred415, our four 15-minute interval system makes it easy to customize intensity. Survivors can choose treadmill walking or jogging, alternate with resistance training, and scale up at their own pace. It is the perfect environment for anyone asking, “Can cancer patients exercise?”

Shred415’s Role in Breast Cancer Awareness
We are proud to support Breast Cancer Awareness Month through education, community, and movement. Exercise and breast cancer research continues to reveal that fitness is not just about living longer, but living stronger. Whether you are looking to prevent recurrence, rebuild after treatment, or simply support your overall health, Shred415 is here to guide you.
Explore more about our commitment to health and resilience on our Lifestyle Blog and find your nearest Shred415 location.