New research from Spain and Portugal has indicated that regular physical activity in a heated swimming pool can help people suffering from the painful condition fibromyalgia.

The symptoms of fibromyalgia, which has no known cause, range from chronic pain and muscle, ligament and tendon tenderness to sleeping disorders, neck and shoulder pain, anxiety and depression.

Treatment for the condition, which affects women far more than it does men, currently involves the use of painkillers, antidepressants, relaxation therapy and exercise.

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