You need sleep to rejuvenate your body and feel energized for the day ahead. Yet a good night’s rest can be hard to come by when you have ankylosing spondylitis (AS). Between 35 and 90 percent ...

Parasomnia disorders involve some type of abnormal behavior during sleep, such as walking or talking. Parasomnias may be categorized as primary parasomnias (disorders of sleep states) or secondary ...