Cancer Research UK warns that persistent fatigue, which does not disappear even after sufficient sleep or rest, may be a warning sign of cancer. This symptom occurs in approximately 65% of cancer patientsbut it is often overlooked or mistaken for normal fatigue caused by lifestyle or weather, writes .
“Cancer-related fatigue can affect you physically, emotionally, and mentally. How long it lasts, how severe it is, and how often it occurs varies from person to person.” says the organization on its official website. Fatigue can be extremely frustrating and can significantly affect daily life – from cooking and cleaning to basic self-care or communication with other people. Over time, some people find that fatigue is a constant reminder of their illness, which can be psychologically taxing.
If you experience cancer-related fatigue, you may notice:
- Lack of energy – the feeling that you would rather stay in bed all day
- The need for rest even after minimal activity
- Feeling like you just can’t be bothered
- Sleep problemssuch as insomnia or interrupted sleep
- Difficulty getting up in the morning
- Feeling short of breath or exhausted in simple activities, e.g. showering or making the bed
- Difficulty concentratingeven for simple tasks like watching TV or chatting with friends
- Psychic symptomsincluding anxiety, despondency or feeling hopeless
Fatigue can also be caused by other health problems or lifestyle, for example insufficient rest or sleep, unhealthy diet and lack of exercise, as well as conditions such as anemia or other medical conditions. Other health problems that can cause fatigue include anemia, thyroid disorders (underactive or overactive), diabetes, kidney disease, heart disease, endometriosis, long-term Covid, or mental health issues.
Fatigue may also be related to the use of certain medications, such as antidepressants, chemotherapy, radiotherapy or painkillers. However, if you experience persistent and unexplained fatigue that makes your daily life difficult, you should consult your doctor.
