Why You Feel Tired All the Time

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Why You Feel Tired All the Time

Psychological or physical problems can be a cause of tiredness all the time. Serious illnesses especially the most painful can cause fatigue although some minor diseases can also tire someone out.

Anxiety is another frequent cause of constant tiredness as it can cause insomnia that in turn leads to persistent fatigue. Mental health problems like depression can also cause tiredness.

Other Causes of Constant Tiredness

Inadequate sleep

Inadequate sleeping lack can cause continuous fatigue as the body does not get enough time to replenish. The solution for the problem is to sleep for 7-8 hours per night and maintain same waking time in the morning to keep on the schedule. Change everything that makes you uncomfortable thus hindering good sleep and consult a doctor if still, the condition does not change. Sleep apnea can also cause tiredness. It is a severe sleep disorder that briefly stops breathing causing loud snoring, interference with quality of sleep hence daytime fatigue.


The food you eat can cause fatigue if it is not nutritious and enough to fuel your daily activities. A poor diet also interferes with quality of sleep thus making you feel tired the following day. Food that causes blood sugar to spike will end up causing fatigue when the sugar levels drop. Junk food that is high in fat and sugar are likely causes. A balanced diet to fuel the body properly should have fruits, whole grains, vegetable, and protein.


Anemia usually occurs due to iron deficiency and especially common among women. Iron is the main component of red blood cells that carry oxygen throughout the body. Iron deficiency prevents the body from getting essential energy for energy needs.

Excess Caffeine

Most people take caffeine to liven up. Moderate coffee intake improves alertness and energy. However excess caffeine increases heart rate, palpitations, and jitteriness. Too much caffeine can also cause anxiety, insomnia and high blood pressure. All the side effects can cause you always to feel tired. Additionally, caffeine can make a user feel fatigued after the stimulating effect wears off.

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The thyroid gland regulates metabolism and the speed at which it coverts food (body fuel) into energy for the body's functions. Hypothyroidism is an underactive thyroid that causes depression, fatigue, and weight. A blood test helps, to confirm if you have hypothyroidism and diagnose it as the cause of constant tiredness. The advantage is that it helps with replacement thyroid hormones.


Diabetes causes fatigue whether the blood sugar is high or low. High blood sugar stays in the bloodstream rather than being used as energy thus causing fatigue. Low blood sugar (glucose) causes fatigue as the body does not have enough fuel to support its energy needs.

Undetected Urinary Tract Infections (UTI)

UTI include burning or pain during urination and frequent urge to visit the washrooms. The mental torture it causes leads to anxiety and stress that can because of tiredness.UTI may also make you feel tired continually if the infection has spread to kidneys.


Water helps to quench thirst, but lack of it causes fatigue due to dehydration. At the time you feel thirsty, effects of dehydration are already taking effect and causing constant fatigue.

Heart problems

Heart diseases prevent proper pumping of blood throughout the body thus preventing essential oxygen from reaching all parts of the body. Improper pumping of blood causes a plaque buildup to thicken, and arteries stiffen thus inhibiting the flow of blood in arteries. Some organs will not get adequate blood and oxygen thus hence the feeling of tiredness.

Chronic fatigue syndrome and fibromyalgia

These two conditions cause persistent fatigue when engaging in daily activities for up to six months. Both are chronic conditions that require treatment according to intensity in an individual and changes in lifestyle such as exercising, eating a balanced diet, limiting caffeine intake as well as getting adequate sleep.

When you are always tired, it is essential to determine if the cause is medical or non-medical to decide on the appropriate solution.