lethargiclack of energydepressiondrowsinessgrew lethargiclistlesspoor activitysluggishness
Lethargy is a state of tiredness, weariness, fatigue, or lack of energy.wikipedia
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exhaustionOverexertionfeeling tired
Lethargy is a state of tiredness, weariness, fatigue, or lack of energy.
It can manifest as somnolence, lethargy, or directed attention fatigue.

Alcoholic drink

alcoholic beveragealcoholalcoholic beverages
It may also be a side-effect of medication or caused by an interaction between medications or medication(s) and alcohol.
A BAC of 0.09% to 0.25% causes lethargy, sedation, balance problems and blurred vision.

Encephalitis lethargica

sleeping sicknessa worldwide epidemic of sleeping sicknesslethargic encephalitis
Encephalitis lethargica, also known as "sleeping sickness"
It is characterized by high fever, sore throat, headache, lethargy, double vision, delayed physical and mental response, sleep inversion and catatonia.

Major depressive disorder

depressionclinical depressionmajor depression
Clinical depression

Sleep apnea

sleep apnoeaobstructive sleep apneasleep apnea syndromes
Sleep apnea


It can be accompanied by lethargy, weakness, and lack of mental agility.


Side effects of AG include lethargy, somnolence, dizziness, headache, appetite loss, skin rash, hypertension, liver damage, and adrenal insufficiency, among others.

Canine distemper

distempercanine distemper virusCanine morbillivirus
In canines, distemper affects several body systems, including the gastrointestinal and respiratory tracts and the spinal cord and brain, with common symptoms that include high fever, eye inflammation and eye/nose discharge, labored breathing and coughing, vomiting and diarrhea, loss of appetite and lethargy, and hardening of nose and footpads.

Altered level of consciousness

level of consciousnessaltered mental statusdecreased level of consciousness
A mildly depressed level of consciousness or alertness may be classed as lethargy; someone in this state can be aroused with little difficulty.

Effects of long-term benzodiazepine use

long-term use of benzodiazepinesContinued use despite harmful consequencesLong term use
Some of the symptoms that could possibly occur as a result of a withdrawal from benzodiazepines after long-term use include emotional clouding, flu-like symptoms, suicide, nausea, headaches, dizziness, irritability, lethargy, sleep problems, memory impairment, personality changes, aggression, depression, social deterioration as well as employment difficulties, while others never have any side effects from long-term benzodiazepine use.

Dog days

They were historically the period following the heliacal rising of the star system Sirius, which Greek and Roman astrology connected with heat, drought, sudden thunderstorms, lethargy, fever, mad dogs, and bad luck.

Health effects of wine

red winehealth benefits of winebeneficial effect
Wine has a long history of use as an early form of medication, being recommended variously as a safe alternative to drinking water, an antiseptic for treating wounds, a digestive aid, and as a cure for a wide range of ailments including lethargy, diarrhea and pain from child birth.

Pediatric ependymoma

pediatric cases
Symptoms associated with the development of pediatric ependymomas are varied, much like symptoms for a number of other pediatric brain tumors including vomiting, headache, irritability, lethargy, and changes in gait.

Canine parvovirus

Parvoparvovirusparvovirus, canine
The signs may include lethargy, vomiting, fever, and diarrhea (usually bloody).


psilocybine4-PO-DMT (Psilocybin)psilo-
After ingesting psilocybin, a wide range of subjective effects may be experienced: feelings of disorientation, lethargy, giddiness, euphoria, joy, and depression.

Sickness behavior

sicknesssickness behavioursickness behaviour.
Such illness responses include lethargy, depression, anxiety, malaise, loss of appetite,

Severe acute respiratory syndrome

SARSSARS outbreakSevere Acute Respiratory Syndrome (SARS)
Initial symptoms are flu-like and may include fever, muscle pain, lethargy symptoms, cough, sore throat, and other nonspecific symptoms.


Low light and lack of color of this sort is associated with depression and lethargy.

Congenital hyperinsulinism

beta cell dysregulation syndromecongential hyperinsulinismislet cell adenomatosis
Hypoglycemia in early infancy can cause jitteriness, lethargy, unresponsiveness, or seizures.

That Sugar Film

As a result, Gameau gained weight, grew lethargic, and developed fatty liver disease.


Clinical complaints can also include lethargy and anorexia.

Succinic semialdehyde dehydrogenase deficiency

4-hydroxybutyric aciduriasuccinate-semialdehyde dehydroxylaseγ-hydroxybutyric aciduria
Problems unique to neonates can include prematurity, lethargy, decreased sucking, respiratory difficulty and hypoglycemia.