Chronic Fatigue Syndrome Complete Practice Test 2025

Chronic Fatigue Syndrome (CFS) is characterized by a range of symptoms, with fatigue being the most prominent. However, sleep disturbances and cognitive impairment are commonly reported symptoms that significantly affect the quality of life for individuals with CFS. People with CFS often experience non-refreshing sleep, insomnia, or hypersomnia, which can exacerbate feelings of tiredness. Cognitive impairments, often referred to as "brain fog," include difficulties with concentration, memory, and mental clarity. These symptoms can be debilitating and contribute to the overall experience of chronic fatigue, reinforcing the importance of acknowledging them when discussing CFS.

In contrast, increased appetite and weight gain, frequent colds and allergies, and severe mood swings may occur in some individuals but are not universally recognized as hallmark symptoms of CFS. The focus on sleep disturbances and cognitive issues highlights the broader impact of the syndrome beyond mere fatigue, illustrating the complex nature of this condition.