My friend sleeps too much

I have a friend who can sleep for hours even during lectures without waking up. Is there any medical solution to this?

Gilbert (by SMS)

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Not getting enough sleep at the right time is the most common cause of excessive sleepiness. Working at night and sleeping during the day is another. Other causes include drug, alcohol, or cigarette use, lack of physical activity, obesity, and the use of certain medications. Excessive sleeping when not expected as your friend is experiencing may also be caused by an underlying condition such as depression or a sleep disorder . It is also possible that a medication or herbal remedy that your friend is taking may be making symptoms worse. These could include medications that treat high blood pressure, nausea, colds, allergies, heart conditions, or depression.  To get enough sleep at the right time, it is important to stay away from alcohol, caffeine, and nicotine. It is also important to maintain a healthy diet, exercise regularly, and try relaxation techniques such as hot baths and massage.