reduced blood circulation. When your
body is cold, it constricts your blood
vessels, reducing blood flow to your skin
in order to conserve heat around your
internal organs.
In some people this reaction, called
vasoconstriction, is triggered even at
relatively warm temperatures, leading to
cold feet and hands.
Cold extremities are quite common in
cooler weather and are unlikely to
indicate any serious medical condition.
However, if they go white you may be
suffering from Raynaud’s phenomenon,
a condition where arteries cut off
almost all circulation to hands and feet in
cold temperatures.
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