Fatigue (medical)

Fatigue (also called exhaustion, tiredness, languidness, languor, lassitude, and listlessness) is a subjective feeling of tiredness which is distinct from weakness, and has a gradual onset. Unlike weakness, fatigue can be alleviated by periods of rest. Fatigue can have physical or mental causes. Physical fatigue is the transient inability of a muscle to maintain optimal physical performance, and is made more severe by intense physical exercise. Mental fatigue is a transient decrease in maximal cognitive performance resulting from prolonged periods of cognitive activity. It can manifest as somnolence, lethargy, or directed attention fatigue.

Medically, fatigue is a non-specific symptom, which means that it has many possible causes. Fatigue is considered a symptom, rather than a sign because it is a subjective feeling reported by the patient, rather than an objective one that can be observed by others. Fatigue and 'feelings of fatigue' are often confused.

Classification

Physical fatigue

Lassitude (song)

"Lassitude" is a song by British-based drum and bass producers Sigma and DJ Fresh. It is the fourth and final single released from Fresh's second album Kryptonite. It reached #98 on the UK Singles Chart and #11 on the UK Dance Chart.

Music video

The music video for the song was uploaded to YouTube on October 4, 2010.

Track listings

Chart performance

Release history

References

External links