Home > Fatigue (physical)
Fatigue is a feeling of excessive tiredness or lethargy, with a desire to rest, perhaps to sleep. Often it causes yawning.It is typically the result of working, mental stress, jet lag or active recreation, but also from boredom or disease or mold or simply lack of sleep. It may also have chemical causes, such as poisoning or mineral or vitamin or deficiencies.
Fatigue can also be quite dangerous when performing certain duties that require constant concentration, such as driving a vehicle. When someone is sufficiently fatigued, they may experience microsleepA microsleep is a period of sleep lasting a few seconds. It often occurs as a result of a sleep debt. Microsleep becomes extremely dangerous when it occurs during situations when continual alertness is demanded, such as driving a motor vehicle.s that can cause them to lose concentration.
See also
- Chronic Fatigue Syndrome (aka Myalgic Encephalomyelitis)
- Multiple Sclerosis
- Battle fatigue
- Reader's fatigueReader's fatigue is a form of fatigue that happens when reading. It usually occurs when the reader is reading one or more long, poorly spaced paragraphs of writing. Reader's fatigue is not often associated with professional writing. Most professionals are
SymptomThe term symptom has two similar meanings in the context of physical and mental health: A symptom can be a physical condition which shows that one has a particular illness or disorder (see e. Longman, 1995). An example of a symptom in this sense of the wo
