Persons who suffer from arthritis may suffer intense pain at night, disturbing their sleep cycle and causing fatigue and drowsiness the next day.
One recent study with 133 subjects found that more than half of the arthritic patients reported suffering from lower quality sleep, because of the intense symptoms of their condition at night. Other studies have indicated that arthritis sufferers may experience an intensification of pain at night, causing daytime fatigue and sleepiness.
Researchers have also tried to identify the reasons for the increased pain at night. One theory is that the body releases less cortisol at night which causes increased intensity of symptoms. Cortisol is a natural anti – inflammatory chemical which can control our response to pain. Cytokines may also migrate to already- inflamed arthritis tissue at night time, causing more pain.