Why Am I Always Cold? Understanding Cold Intolerance

Cold Intolerance: Symptoms, Causes, and Solutions.
What are the main causes of cold intolerance or chilliness in individuals?
How does body composition, like muscle mass and fat distribution, contribute to feeling cold?
Why are anemia, hypothyroidism, and Raynaud’s phenomenon significant in cold intolerance cases?
In what ways do individual factors, like genetic predisposition, affect one's sensitivity to cold?
How does anorexia nervosa contribute to increased cold sensitivity?
Important Highlights (One Sentence Each)
Cold intolerance, often not a disease itself, can indicate underlying health issues.
About 60% of cold intolerance cases are benign, stemming from factors like low body weight or poor circulation.
Women, due to lower muscle mass and different fat distribution, generally produce less body heat.
Anemia, a leading cause of cold intolerance, impairs oxygen delivery, affecting extremities first.
Hypothyroidism causes cold intolerance by slowing metabolism and reducing heat production.
Raynaud’s phenomenon, affecting 2-5% of the population, involves excessive vasoconstriction in response to cold or stress.
Individuals with a lower body mass index are more susceptible to cold due to less insulating fat.
Anorexia nervosa leads to cold sensitivity due to very low body mass and impaired metabolism.