Why Do I Feel Tired All The Time? Unpacking Persistent Fatigue and Its Link to Cancer

Feeling constantly drained, even after a full night’s sleep, can be incredibly frustrating and concerning. While occasional tiredness is a normal part of life, persistent, unexplained fatigue that impacts your daily activities might make you wonder if something more serious is at play. It’s a common worry, and understanding the potential causes, including a link to cancer, is an important step toward finding answers and relief.

Understanding Persistent Fatigue: A Key Cancer Symptom

When we talk about feeling tired all the time, it’s crucial to distinguish between everyday exhaustion and a more profound, debilitating type of fatigue often associated with serious health conditions, including cancer. This persistent exhaustion, known as cancer-related fatigue (CRF), is far more intense than normal tiredness and isn’t typically relieved by rest or sleep. It can affect your physical, emotional, and mental well-being, making even simple tasks feel monumental.

What Causes Cancer-Related Fatigue?

Cancer-related fatigue is a complex symptom, often stemming from a combination of factors related to the cancer itself, its treatments, and other physical and emotional stressors. It’s not just feeling sleepy; it’s a deep-seated weariness that can profoundly impact quality of life.

The Cancer Itself

A growing tumor can consume a significant amount of the body’s energy and nutrients, diverting resources from healthy tissues. Cancer cells often release substances called cytokines, which are involved in inflammation, triggering a constant state of