Why Am I Always Tired?

Fatigued Americans

There are many reasons why many Americans always feel tired. If you regularly feel fatigued, you are not alone. About one-third of healthy teens and adults describe feeling sleepy or fatigued on a fairly regular basis. 

Regular fatigue and tiredness is a common symptom of several serious conditions and diseases. It is important to rule out any health issues with the help of a medical professional. If you know that your tiredness and fatigue is not being caused by problems with your health and wellness, there is a good chance that your tiredness is the result of lifestyle factors.

The following are some of the common reasons that people often feel tired even though they do not have an illness or condition that causes them to feel this way:


What you do and do not eat, and the nutrients you do and do not take in, can have a big impact on your energy levels. Eating too much of less healthy foods and/or not enough nutrient rich foods can make a person feel tired and fatigued.

Carbs can be a quick source of energy and fuel for the body. The body breaks down carbs into sugar and uses it for fuel. Even though carbs can be a great source of energy, not all carbs are the same. Eating too many refined carbs such as those found in sugars and other processed carbs can make people feel tired throughout the day. If you think about it, do you feel tired after you eat? Many people think that this is a normal way to go about their day but if you often feel tired after you eat, this may be because of the kinds of foods you are eating. The quick spike in blood sugar, and subsequent fall, can make a person feel exhausted.

Other reasons your diet may affect your energy levels and make you feel tired include but are not limited to:

– Food sensitivities

– Not eating enough calories of nutrient rich foods

– Inadequate hydration

– Drinking “energy” drinks that have caffeine, sugar, amino acids, high 

  doses of B vitamins and/or herbs

Activity Level

Even though you may feel like resting when you are feeling tired and fatigued, leading a sedentary lifestyle without much physical activity can make a person feel low energy. Getting exercise, even in small amounts, can often boost a person’s energy level. 


Many teens and adults who feel like they are always tired do not realize it but they simply are not getting enough sleep each night. The American Academy of Sleep Medicine says that adults need an average of seven hours of sleep per night. This should be restful and uninterrupted in order to allow the brain to go through all stages of the sleep cycle. Even though some people cannot avoid being awake at night and sleeping during the day because of work, it is better for people to sleep at night when possible.


Chronic stress can take its toll on a person’s energy levels. While it would be almost impossible to go through life without times when you are very stressed out, if there are elements in a person’s life that creates chronic and ongoing high levels of stress, it can lead to fatigue. 

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5 Most Common Reasons for Fatigue

Many people report feeling tired all of the time. This is a common symptom of many conditions. Don’t get trapped asking, “why am I always tired?” Here are some of the most common reasons for fatigue.

Lack of Sleep

By far, lack of sleep is the most common reason people are tired all of the time. In many cases, some people may not recognize how much sleep they are lacking. With the stress from daily life or work, you may not get the most restful night’s sleep. While there are medications that can help, you should also determine your needs. Most adults need about eight hours a night and if you have sleep debt, you’re going to need extra sleep on top of that.


When it comes to anemia, you may have a lower number of red blood cells or not enough hemoglobin. Hemoglobin helps carry oxygen through your body. When you don’t have enough red blood cells or hemoglobin, you might feel tired or weak all of the time. In addition, you might have shortness of breath, dizziness or headaches. To find out if you have anemia, your doctor can do a simple blood test.


Depression can affect your sleep and energy level. You may have trouble falling asleep and may wake up multiple times at night. In some cases, someone with depression will have trouble waking up in the morning and sleep too long. Depression leaves patients feeling sluggish and unmotivated.

Heart Disease

Heart disease causes patients to feel tired all of the time. Patients may also feel unable to tolerate exercise. With heart failure, your heart can’t pump oxygenated blood effectively. Daily activities may be too difficult to handle without fatigue. While men may have more symptoms than fatigue, women may have more subtle symptoms. For many women, fatigue is the sole symptom. It’s important if you have a family history of heart disease or other risk factors to see a doctor if you are excessively tired.


Diabetes occurs when your body doesn’t make enough insulin or when your body does not use it as well as it should. In order to find out if you have diabetes, a doctor can do a simple blood sugar test. Then, another test known as hemoglobin A1C can determine your average blood sugar.

When it comes to feeling tired all of the time, many conditions might factor into it. It’s important if you’re suffering from chronic tiredness to visit a doctor to find out the underlying cause.