Lethargy causes you to feel sleepy or fatigued and sluggish. This sluggishness may be physical or mental. People with these symptoms are described as lethargic. Lethargy can be related to an underlying physical or mental condition.

What does it mean when your body is sluggish?

Lethargy is a general state of fatigue that involves a lack of energy and motivation for physical and mental tasks. Some simple causes, such as overexertion or not getting enough sleep, can leave a person feeling lethargic. In other cases, an underlying health condition may cause long-term lethargy and fatigue.

How do you deal with being sluggish?