Related items Related items Related items Related items Related items Related items Related items Related items Related items

Fatigue (physical)

(Redirected from Lethargy)

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 simply lack of sleep. It may also have chemical causes, such as poisoning or mineral or vitamin 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 microsleeps that can cause them to lose concentration.

See also

• Chronic Fatigue Syndrome (aka Myalgic Encephalomyelitis)
• Multiple Sclerosis
• battle fatigue

This article is a stub. You can help Wikipedia by expanding it.

Related items		Related items		Related items		Related items
Related items		Related items		Related items		Related items
Related items