Common Causes of Fatigue

By Max. D Gray. Updated: January 20, 2017
Common Causes of Fatigue

Fatigue is a feeling of lack of energy, tiredness or exhaustion which may be due to many factors. Fatigue doesn't just refer to sleepiness, and lack of sleep may not even be the cause. It normally goes hand in hand with apathy and other psychological symptoms. In some cases, you'll need to visit a specialized doctor and receive appropriate treatment to treat fatigue. To learn more about this problem, keep reading this OneHowTo article on the common causes of fatigue, so you can try to correct bad habits.

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Steps to follow:

Excess carbohydrates

Your fatigue may be due to your intake of carbohydrates and proteins, which may not be adequate at every meal. Carbohydrates cause the brain to increase the secretion of a substance called serotonin, whilst proteins limit it and together they help to prevent fatigue. Thus, you must include both nutrients in a balanced way to be able to better tackle lethargy.


Sleeping in on the weekend

Many times we think that it's lack of sleep that makes us feel so tired and often sleep in on the weekends to compensate. But the truth is that this is often not the case, as we all have a biological clock that determines our sleep and wakefulness. That is why, if every day we got up early and slept in until noon on the weekends, we could alter our biological clock and end up even more tired. If you want to sleep over the weekend, go to bed earlier and get up at about the same time as the other days.

On the other hand, lack of sleep can also cause driving fatigue, especially in people who drive long hours and through several time zones.



Pressure at work, too much homework, problems with your partner ... there are many factors that can make us feel stressed and leave us feeling exhausted at the end of the day. That is why we must learn to breathe deeply and slowly, relax and calm our minds. See this article for some tips on how to combat stress.



Fluid loss can cause a decrease in physical performance, and dehydration sometimes reduces blood volume, that can manifest as fatigue. The sensation of thirst is a sign that the body has lost a considerable amount of liquid, so you should drink fluids before your body reaches this point. The recommended amount of water is about one and a half litre daily, more if you exercise a lot.



If you have trouble focusing your eyes, you probably have to adopt awkward postures to be able to read and work better. This will take its toll and you'll end up feeling more tired than others at the end of each day. You must undergo an eye test to determine if you need glasses or if you have any problems with your eyes.


Fluctuations in blood pressure

Another cause of fatigue may be neurally mediated hypotension, characterised by the occurrence of transient hypotension. Some symptoms of this condition include dizziness and fainting, due to fluctuations in blood pressure. A doctor will need to perform a test to confirm or rule this out, and if necessary, regulate your blood pressure.


Side effects of drugs

Sometimes we take medicines that cause drowsiness such as side effects, such as flu or some antihistamines. Also, some antihypertensive medicines and diuretics can cause dullness and lethargy in some people. Therefore you should consult your doctor if you experience any side effects to replace the drugs you are taking with others that do not produce these adverse effects.


Season changes

Season changes require our bodies to adapt to different weather conditions and to daylight hours, which could also trigger fatigue and general tiredness. Moreover, other symptoms might appear such as sleepiness, difficulty concentrating, appetite loss, and light-headedness. During those phases, we recommend you take some vitamins to fight fatigue so that your body gets all the nutrients it needs to stay energized.

This article is merely informative, oneHOWTO does not have the authority to prescribe any medical treatments or create a diagnosis. We invite you to visit your doctor if you have any type of condition or pain.

If you want to read similar articles to Common Causes of Fatigue, we recommend you visit our Diseases & secondary effects category.

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Common Causes of Fatigue
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