Sep 11, 2023 · Lethargy is a decrease in consciousness. It happens because of disruptions in brain activity. It’s a possible symptom of serious medical conditions.

Apr 2, 2026 · Lethargy involves extreme exhaustion and low energy, which can disrupt daily activities. Treatment depends on the cause, such as stress or poor sleep.

Feb 4, 2026 · Key Takeaways Lethargy is a condition that makes you feel very tired and lack energy. Infections, diseases, and several other medical issues can cause lethargy. Not getting enough sleep …

Mar 31, 2025 · Lethargy is a symptom that involves drowsiness, an unusual lack of energy, and decreased mental alertness. It can be caused by a range of health conditions and lifestyle factors, …

Lethargy is a state of tiredness, sleepiness, weariness, fatigue, sluggishness, or lack of energy. It can be accompanied by depression, decreased motivation, or apathy.

Dec 25, 2025 · Lethargy is a state of physical or mental fatigue. Learn more about the symptoms of lethargy, what can cause them, and how underlying issues are treated.

lethargy, in medicine, a morbid condition of deep and lasting drowsiness from which the sufferer can be aroused only with difficulty and temporarily. It is a symptom of various disorders, such as sleeping …

Lethargy is more than ordinary tiredness, it’s a persistent lack of energy that can cloud your physical health, mental clarity, and emotional well-being. Recognizing the symptoms early and tracking how …

Lethargy - a symptom - is a lack of energy, sluggishness, apathy or indifference, or laziness. Many conditions can cause lethargy, from a simple lack of sleep to cancer treatments to side effects of …

lethargy, languor, lassitude, stupor, torpor mean physical or mental inertness. lethargy implies such drowsiness or aversion to activity as is induced by disease, injury, or drugs.