Jevan
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Science - Other
"During the flu season of 2005, an experiment was performed to test the idea that being
cold can make you sick. 90 people kept their feet in a bowl of ice water for 20 minutes,
while a control group of 90 people put their feet in an empty bowl for 20 minutes.
Over the next 5 days, 29% of the group with chilled feet developed cold symptoms,
compared to only 9% of the control group. Professor Eccles explained this effect by
saying that our bodies restrict blood flow
to the extremities when we get cold to help conserve body heat for the torso and brain,
which really need to be warm. Cutting off the blood flow reduces the supply of white
blood cells which are the immune system's primary weapon against germs."
(Reference: Cold Weather Really Can Make You Sick).
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