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Often, we all tend to blame our too-busy lifestyle for being tired and most of the times we are right about it. But if you are tired all the time even after having enough rest and comfortable work routine you are constantly depending on caffeine to keep you active, you need to find out the reasons behind your tiredness. If your tiredness is persisting for some time you may have to get yourself tested for anemia (iron deficiency), thyroid problems, heart disease and much more. Even deficiency of vitamin D, allergies or any other medications could be the reasons of your tiredness. Anemia This condition is due to a lack of red blood cells, which result in bringing oxygen from the lungs to the tissues and cells. Shortage of oxygen supply in the body causes frequent or unexplained dizziness, headache and tiredness all the time. Anemia can be caused by vitamin or iron deficiency , internal bleeding, blood loss, or a chronic disease such as rheumatoid arthri...

Narcolepsy is a life-long sleep disorder characterized by excessive sleepiness, hallucinations, sleep paralysis, and in some cases, it brings along episodes of cataplexy, which is a partial or complete loss of muscle control, often stimulated by a strong emotion, including laughter. People who have narcolepsy usually experience excessive sleepiness during day time and uncontrollable sessions of falling asleep in the daytime. These sudden sleep attacks may take place during any type of activity of the day. Causes of narcolepsy The episodes of narcolepsy with cataplexy occur because of the loss of a chemical in the brain called hypocretin, which usually acts on the altering systems in the brain and helps us in staying awake as well as regulate sleep wake cycles. In this condition, the group of cells that produce hypocretin – found in a region called the hypothalamus is partially or completely damaged. In the absence of hypocretin, the person has difficulty ...