Fatigue that won't go away with rest? Here's what might be behind it

             Written by: Ehsan Siddiqui

23 September 2025

We all feel exhausted sometimes, but ideally, the fatigue should go away with a little rest; if it doesn't, here's what you should look into.

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Excessive caffeine intake can make it difficult to fall asleep, reduce the amount of time spent sleeping, and degrade the quality of the sleep you obtain. This can affect some people more than others.

Too Much Caffeine

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A healthy, nutrient-dense diet is necessary for the body's cellular metabolism. When you don't get enough calories and nutrients, your body breaks down fat and muscle for energy, leaving you drained.

Imbalanced Diet

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Mental health problems can have an impact on both your energy and your mood. Regardless of how much sleep you get, persistent sadness, anxiety, or a lack of interest in activities can make you feel exhausted.

Poor Mental Health

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Thyroid hormones are necessary for metabolism regulation as well as organ growth and development throughout the body. Thyroid hormone imbalances can cause a number of effects, including fatigue.

Thyroid Disorders

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It is difficult for your body to turn food into energy when blood sugar levels are too high or low. This can cause you to feel drowsy, thirsty, and exhausted all day long.

Blood Sugar

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