I had knee surgery and it is more painful than before. Could it be that because of my knee pain, my neck is stiff and tense?

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A sleep diary is a record of an individual's sleeping and waking times with related information, usually over a period of several weeks.
This data alone can help people pin point factors favouring good sleep.

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Don’t let stress or the time change wreak havoc on your sleep!

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Alfred Vogel's guide to leading a healthy and happy life

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