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biological

Judged: two independent readers; copy check clear.

lethargy

lethargy Lethargy is a general state of sluggishness marked by low energy, lack of interest, tiredness, and trouble concentrating or carrying out simple tasks.

Lethargy is a general state of sluggishness marked by low energy, lack of interest, tiredness, and trouble concentrating or carrying out simple tasks. It can occur in connection with conditions such as depression or drug addiction.