<unk>  is a state of tiredness, sleepiness, weariness, fatigue, sluggishness or lack of energy. It can be accompanied by depression, decreased motivation, or apathy.<unk>  can be a normal response to inadequate sleep, overexertion, overworking, stress, lack of exercise, improper nutrition, boredom, or a symptom of an underlying illness or a disorder. It may also be a side-effect of medication or caused by an interaction between medications or medication(s) and alcohol. It may also be an altered level of consciousness. When part of a normal response,<unk>  often resolves with rest, adequate sleep, decreased stress, physical exercise, and good nutrition.<unk> 's symptoms however can last days or even months, so it can be a sign of a recent underlying illness of infection if it doesn't resolve normally.
Lethargy
Accident-proneness
Bullying
Unconsciousness
Homicidal ideation
Mindfulness
Emotional lability
Emotional detachment