Being tired is a normal part of life -- we all can admit to feeling drained, exhausted, ready for bed even though it's only 7pm. But a lack of energy and too much sleep can be a sign of depression -- how do you know if exhaustion is normal or a sign of something deeper?

Glee Magazine has put together a great article on depression and exhaustion that you should check out if you're concerned about you energy levels or those of someone elses. One telltale sign that you might be depressed? If you wake up from a long sleep and still don't feel refreshed, something might be amiss.