Why Do I Feel Sleepy All The Time?

Often you will find someone complaining about sleeplessness or asking “Why do I feel sleepy all the time”? We don’t realize but the busy life and poor diet slowly take their toll on one’s health and lifestyle. This is evident only when things get out of our hands. Often, feeling sleepy is associated with lethargy.

A person feeling sleepy should not be judged for being lazy. There can be an underlying medical condition, such as depression and fatigue and many more reasons.

Why Do I Feel Sleepy All The Time?

Why Do I Feel Sleepy All the Time? – Reasons

The main reasons for being sleepy are listed as follows:

Not Eating Right

Here is one of the reasons, offering explanation to your question, “Why do I feel sleepy all the time”. If you are living a busy life, or you are under a constant stress of meeting deadlines, don’t find solace in caffeine and sweet things. Often taking too much caffeine and sugar can back fire. You are left more tired and sleepy. Drink a lot of water and eat fruits and vegetables. In a recent research, it was found out that people who eat healthy, feel fresh all the day long.

Lack of exercise

Lack of exercise is another reason for “Why do I feel sleepy all the time?” Health experts recommend at least 40 minutes of rigorous workout for four days a week for optimum working of the body. Consider the body to be a machine, if it only rests, it will rust. Proper physical workout is essential to provide the body with the required energy. Add at least thirty minutes of exercise to daily routine and see the marked difference. But make sure that the body is not over worked or over stressed with exercise. It may induce sleep and you may ask “Why do I feel sleepy all the time?” Plan the exercise according to diet, body and requirement.

Sleep Deprived

Some people actually don’t get enough sleep owing to their busy schedules. It leads them to feel sleepy all the time and seek answer to the question “Why do I feel sleepy all the time?” One may not realize it, but required sleep is not taken as we give priority to other activities. A minimum of 6 hours of regular sleep at night is essential. This is an average. Some people might require a little more sleep to feel fresh. Ideal sleeping time is 8 hours. If anyone can afford to sleep for 8 straight hours, they must. Also note that females require more sleep than males do.

Why Do I Feel Sleepy All the Time – Medical Reasons

To feel fresh, one may need to make fixes in diet and routine. Meanwhile, there can be medical reasons also, which cause lethargy, tiredness and make one feel sleepy. Let’s explore further about these medical reasons. You can get answer to “Why do I feel sleepy all the time?” with the help of these reasons.


People suffering from anemia will regularly feel weak and tired. It leads to the condition of feeling sleepy. In anemia the body suffers from iron deficiency, hence the feeling of heavy muscles and a weak body. It is more common in pregnant women or in women with heavy menstruation. A study found out that one in 20 men or women is victim to anemia.

Coeliac Disease

Coeliac disease is basically intolerance to gluten. People suffering from this disease cannot consume bread, cakes and cereals or any other food with traces of gluten. This disease results in weight loss, anemia, fatigue and feeling tired and sleepy. This explanation provides the answer to “Why do I feel sleepy all the time?”

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a severe disabling tiredness or fatigue. It usually lasts up to six months. A person suffering from this condition will typically feel sleepy and tired all the time.

Sleep Apnoea

In this condition the throat closes or narrows down while the person is sleeping, which causes difficulty in breathing. Consequently the oxygen level in blood decreases and causes the person to wake up after intervals. This leaves the person exhausted and tired for the next some days.

Underactive Thyroid

Underactive thyroid means that the thyroxine or thyroid hormone is too low in the body. This results in gaining weight and generally feeling tired and fatigued. This also results in making one feel sleepy the whole day.


Diabetes is simply having too much sugar in the blood. This decreases the energy level and makes the person feel exhausted and sleepy almost all the time.

Depression and Anxiety

Depression and anxiety are one of the most known causes of fatigue, tiredness and weakness. Both the conditions fatigue the mind and body hence leaving the person sleepy and tired.

Glandular Fever

It is basically a type of fever common in teenagers and young adults. The other symptoms are fever, sore throat and swollen glands. This commonly goes in about four to six weeks but the fatigue lasts for a lot more time. This fatigue makes the patients feel tired and sleepy for a long time, even after when the fever has gone.

Restless Legs

Feeling uncomfortable sensations in the body throughout the night is the condition known as restless legs. This prevents the patient to sleep comfortably as the legs constantly ache or jerk on their own. The patient prefers to keep moving the legs to lessen the pain and in turn is sleep deprived.

Prevention and Treatment

Now that we know most of the reasons why one feels sleepy, it is very easy to nip this problem in the bud. Have a proactive approach towards life. Eat a balanced diet, drink a lot of water and make exercisea part of your life. Sleep well and make sure your sleeping hours are at the night. A good night’s sleep is imperative to feel fresh the whole day long.

If you are already suffering from this condition, apart from changing your life style, you might also need some supplements to regain the lost health quickly. Taking supplements will make your feel fresh and healthy to take on your routine challenges with more zeal and zest. If you are suffering from any medical condition mentioned above, visit your doctor and get treatment so you don’t waste your life by being tired and sleepy all the time. It is an individual’s responsibility to take care of his or her own self instead of burdening others. So be proactive and live a healthy and an energetic life.

About the Author

Posted by: M. Isaac / Senior writer

A graduate in biological sciences and a PhD scholar (NCBA&E University, Lahore), M. Isaac combines his vast experience with a keen and critical eye to create practical and inherently engaging content on the human body. His background as a researcher and instructor at a secondary school enables him to best understand the needs of the beginner level learners and the amateur readers and educate them about how their body works, and how they can adopt a healthier lifestyle.

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