Impact of Cold Hypersensitivity in the Hands and Feet on Osteoarthritis and Pain Prevalence in an Older Korean Population

IntroductionCold hypersensitivity in the hands and feet (CHHF) is a clinical condition characterized by an abnormal perception of cold sensations in the hands and feet at temperatures typically not considered cold.This condition involves a prolonged recovery period for the extremities to regain warmth after transitioning from a cold to a warmer environment 1) .CHHF is particularly prevalent in East Asia, with a notable incidence observed in women and individuals with a slender physique.In South Korea, the prevalence is estimated at approximately 20% 2) .In traditional Korean medicine (TKM), the concepts of yang deficiency and cold pattern play a significant role in addressing CHHF 1) .Yang deficiency arises from inadequate yang qi within the body, resulting in compromised physiological functions and, eventually, impaired blood circulation.Conversely, a cold pattern is characterized by an excessive accumulation of cold within the