Fatigue (Exhaustion)

The term "fatigue" (French for "tiredness") refers to a pathological, profound exhaustion that can paralyze daily life. Experts describe it as a state of exhaustion and rapid fatigue that does not respond to usual recovery strategies. In other words, those affected feel weak even though they get enough sleep and take it easy.

This exhaustion has both a physical and a mental component. Some people feel as if they’re made of lead and can barely get out of bed. Others notice above all that their concentration, memory, and attention span are declining. This is often accompanied by heightened emotional sensitivity. Even small tasks, a conversation, or a short walk can leave them feeling disproportionately drained afterward.

Fatigue is not a disease in its own right in the strict sense, but rather a symptom that occurs in many physical and mental health conditions. For parents, the term is important in two ways: It can describe their own experience in a persistently stressful situation, and it can be a sign that a child or adolescent needs to be evaluated by a doctor.

Normal fatigue is a healthy sign. It occurs after not getting enough sleep, after physical exertion, or during stressful periods, and goes away as soon as you rest. After a restful night or a few quiet days, your energy returns.

With fatigue, however, this is not the case. The exhaustion persists, even if the person sleeps a lot and takes breaks. It is often out of proportion to the previous level of stress and can occur for no apparent reason. How parents can recognize persistent exhaustion:

• The condition lasts for weeks and is hardly alleviated by sleep.
• Even light activities lead to excessive weariness.
• Concentration, memory, and motivation noticeably decline.
• Withdrawal from friends, hobbies, or school increases.

It is important to distinguish this from a depressive episode: Fatigue is also a central feature there, but it is typically accompanied by a depressed mood and a loss of interest. The boundaries between the two are blurred, which is why a professional evaluation is advisable. More on the psychological aspects of fatigue can be found in the article “Fatigue.”

Fatigue very often occurs in conjunction with other medical conditions. The body does not fully recover after a debilitating illness or treatment, and fatigue persists as a stubborn accompanying symptom.

Fatigue is particularly common in neurological conditions such as multiple sclerosis, after a stroke or traumatic brain injury, as well as in rheumatic and other chronic inflammatory diseases, in cancer and its treatment, and following infections, such as in the context of Long COVID. Chronic Fatigue Syndrome (ME/CFS) also falls into this category.

In addition, a wide variety of causes can trigger or exacerbate persistent exhaustion: thyroid disorders, anemia, diabetes, chronic sleep deprivation, or psychological stress. That is why the first step is always a thorough medical evaluation to identify or rule out physical illnesses. Persistent fatigue is a serious signal from the body—it is not a matter of a lack of willpower or discipline.

There is no single medication that reliably eliminates fatigue. The priority is to treat any underlying condition and adjust daily life so that your available energy goes further. Here are some strategies that have proven effective in practice:

• Pace yourself: Spread tasks out over the course of the day, consciously schedule breaks, and figure out what kind of rest really does you good.
• Realistic expectations: Temporarily lower your performance level without judging yourself for it.
• Moderate exercise: Regular, well-paced physical activity, adjusted to how you feel each day.
• Relaxation and structure: Calm routines, relaxation techniques, and a reliable daily rhythm.
• Treat accompanying symptoms: Address sleep disturbances, pain, or low mood in a targeted manner.

This applies doubly for parents. When a child is affected, understanding, a less stressful daily routine, and coordination with the school and the treating practice can help. If parents are exhausted themselves, taking care of themselves is essential. If exhaustion turns into burnout, it’s also worth looking into the topic of burnout.

Fatigue that persists for a long time, does not improve with sleep, and interferes with daily life, school, or friendships should be evaluated by a doctor. The first point of contact is your family doctor or pediatrician, who will check for physical causes and refer you to specialists if necessary.

Warning signs that parents should not ignore include a rapid decline in energy, significant weight loss, persistent withdrawal, or indications that the child is experiencing emotional distress. The sooner the cause is identified, the more targeted the help can be.

Rückenwind This guide supports parents by offering coaching and relief during such phases, but it does not replace medical or psychotherapeutic treatment. Only a medical or psychotherapeutic specialist can determine whether an illness is underlying persistent exhaustion and which treatment is appropriate. For children and adolescents, the assessment of psychological causes is conducted through child and adolescent psychiatry (KJP) or a child and adolescent psychotherapy practice.