What are the reasons for feeling drowsy and lacking energy during the day?

Apr 20, 2023 Source: Cainiu Health

Dr. Yang Jun

Introduction

Feeling drowsy and lacking energy during the day is usually caused by physiological factors, or conditions such as colds or hypothyroidism. A detailed analysis is as follows: It commonly occurs due to irregular lifestyle habits, such as frequent late-night sleep leading to disruption of the body's circadian rhythm. Excessive physical activity during the day can also cause fatigue, lethargy, and sleepiness.

Feeling drowsy and lacking energy during the day is usually due to physiological reasons, but it may also be caused by pathological factors such as upper respiratory tract infections or hypothyroidism. The specific analysis is as follows:

1. Physiological Causes

This condition typically results from irregular lifestyle habits, such as frequent late nights that disrupt the body's natural circadian rhythm. Excessive physical activity during the day can also lead to fatigue, low energy, and sleepiness. These symptoms can be alleviated by adjusting daily routines and getting adequate rest.

2. Pathological Causes

a. Upper Respiratory Tract Infection

Upper respiratory tract infections are usually caused by viral infections. Patients may experience symptoms such as fever, fatigue, drowsiness, and coughing. Under a doctor’s guidance, medications like amoxicillin capsules or roxithromycin dispersible tablets may be used for treatment.

b. Hypothyroidism

Hypothyroidism occurs when an abnormal immune system attacks thyroid tissue, leading to insufficient secretion of thyroid hormones. This deficiency causes symptoms such as fatigue, poor concentration, and excessive sleepiness. Treatment may include medications such as levothyroxine sodium tablets or thyroid tablets, taken as prescribed by a physician.

Besides the above-mentioned causes, conditions such as heart disease and cerebrovascular diseases may also contribute. If the underlying cause is unclear, patients should seek timely medical evaluation and further treatment at a hospital.

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