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A Word with the Doctor by Dr John Winsor
March 18, 2001 (The Sunday Times of Malta)

The patient first complains of aching legs after exercise. It may be slight, but gradually becomes more pronounced. Then the pain is not merely an ache, but a definite, crippling cramp, which can become so severe that the patient finds he or she cannot stand after much walking.

Intermittent claudication is caused by the narrowing of the arteries and often starts in the 30s. It generally means that the arteries everywhere in the body have become narrowed and blood cannot reach the muscles fast enough when they are in use. The heart muscles may be equally affected.