Managing Fatigue During Breast Cancer Treatment: Tips for Conserving Energy

Breast cancer treatment is a physical, emotional, and mental challenge. Facing cancer and its side effects demands extraordinary physical, emotional, and spiritual stamina.

One of the most common side effects is the overwhelming fatigue that can accompany not only cancer but also many treatments, like chemotherapy. This fatigue is more than just feeling tired after a long day; it’s a deep exhaustion that rest alone doesn’t always fix. If you’re feeling this way, you’re not alone.

Managing fatigue is crucial, not only for your body but also for your overall well-being and recovery. Continue reading to learn why this fatigue occurs, everyday tips to help you conserve energy, and how to work closely with your healthcare team to feel more like yourself again.

Why Does Fatigue Occur During Breast Cancer Treatment?

Fatigue during breast cancer treatment can stem from various causes, including:

• Cancer-related biological changes: Some types of breast cancer affect hormones like estrogen and progesterone that influence energy levels and can put an energy-intensive strain on your immune and other systems.
• Nutritional deficiencies: A loss of appetite or dietary restrictions can lead to low energy levels. (Check out SBC’s resources on managing nutrition through treatment.)
• Chemotherapy and radiation therapy: These treatments can cause anemia and inflammation, leading to exhaustion.
• Medications: Drugs used during treatment, such as pain relievers and anti-nausea medications, may cause drowsiness.
• Emotional stress: Anxiety and depression associated with cancer can also contribute to fatigue.
• Sleep disturbances: Pain, stress, or treatment effects can interfere with sleep.

What Does Cancer-Related Fatigue Feel Like?

Cancer-related fatigue differs from everyday tiredness. It is a persistent, overwhelming sense of physical, emotional, and mental exhaustion not relieved by rest or sleep. Unlike typical tiredness, this type of fatigue can significantly impact a person’s ability to carry out daily activities. Cancer-related fatigue often affects quality of life, making it difficult for individuals to concentrate, engage in social activities, or maintain a sense of well-being.