Fatigue: Explanations For Why You May Be Constantly Tired (VIDEO)

WATCH: 5 Reasons Why You May Always Be Tired

We all have days when we can barely drag ourselves out of bed, but what should you do if you are constantly battling fatigue? In the above video, Dr. Tasneem Bhatia -- contributing editor at Prevention Magazine -- visits "The Today Show" to discuss some medical explanations for why you may be tired all the time.

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