Raynaud’s phenomenon: poor adaptation to the cold

Raynaud’s phenomenon is caused by excessive constriction of arteries in the extremities (fingers, feet, ears) in response to cold, which blocks the circulation of blood. A defect in metabolic adaption which is very painful, but without real danger! Download the column

Richard Béliveau

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It was the Japanese of Okinawa who gave birth, in the 19th century, to the formidable method of bare-handed fighting called karate. But for several years this island has fascinated scholars worldwide for another reason: the extraordinary life expectancy of its inhabitants. Download this column.