Chronic Fatigue Syndrome (CSF) Overview Chronic fatigue syndrome (CFS) is a disorder characterized by extreme fatigue or tiredness that doesn’t go away with rest and can’t be explained by an underlying medical condition. In fact, CSF is also known as myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) OR systemic exertional intolerance disease (SEID). It is a serious, chronic […]

Malaise Overview Malaise is a term for a general feeling of discomfort, illness, or fatigue that has no clearly identifiable cause. A person may feel this way for various reasons. Some causes are transient and relatively benign, while others are more chronic and severe. While health issues can cause malaise, people’s experiences and descriptions of this […]

Appetite Overview Appetite is a person’s desire to eat food. A person’s appetite can rise and fall due to a wide range of factors, sometimes causing people to eat less or more than their body needs. Appetite is distinct from hunger, which is the body’s biological response to a lack of food. A person can […]