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Chilling Increases Cold Risk After All

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Written by SuperHuman
Thursday, 01 May 2008
For years physicians told us that mom’s advice about avoiding chills to prevent colds was an old wives’ tale. British scientists found that mom was right all along. They asked nearly 200 subjects to put their bare feet in either an empty bucket or one containing ice water for 20 minutes a day. Within five days, 29 percent of the subjects in the ice water group developed colds compared to only nine percent in the control group. Chilling increases arousal of the nervous system, which causes constriction of the blood vessels in the nose and throat. This decreases circulating white blood cells in the upper respiratory tract that fight infection and kill cold viruses. While there’s no cure for colds, you can prevent them by keeping your hands and feet warm and dry and wearing a hat on cold winter days. (ABC News, Nov. 13, 2005)

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