Many people notice that they feel chilly even when others around them are perfectly comfortable. If you often reach for a sweater while everyone else feels fine the reason may not simply be the room temperature. According to Dr. Kunal Sood, the body’s internal processes can strongly influence how sensitive someone is to cold conditions.
In a recent explanation shared on social media, the doctor said that feeling cold frequently is not always related to poor blood circulation. Instead it may be connected to biological factors such as metabolism body composition and stress responses that affect how the body produces and retains heat.
Iron Deficiency Can Reduce Heat Production
One major reason people may feel colder than others is low iron levels. Iron plays an essential role in the production of haemoglobin which carries oxygen through the bloodstream to tissues across the body.
When iron levels drop oxygen delivery becomes less efficient and the body’s cells may produce less energy. Since body heat is generated during metabolic processes reduced energy production can decrease thermogenesis and make a person feel colder. Iron deficiency may also influence thyroid hormone activity which affects metabolic rate and temperature regulation.
Lower Body Fat Means Less Insulation
Another factor influencing cold sensitivity is the amount of body fat a person has. Subcutaneous fat located beneath the skin acts as a natural insulating layer that helps slow down the loss of body heat.
People with lower levels of body fat often lose heat faster because the protective insulating layer is thinner. Fat tissue also serves as an energy reserve that helps the body generate heat when needed. With fewer energy reserves available the body may produce less warmth in cooler environments.
Chronic Stress May Affect Temperature Regulation
Long term stress can also influence how the body manages temperature. Persistent stress activates the Hypothalamic–Pituitary–Adrenal Axis, which increases the production of the hormone Cortisol.
Higher cortisol levels can alter metabolism and disrupt signals related to thyroid function. It may also narrow blood vessels in the hands and feet which reduces blood flow to these areas making them feel colder. Over time this stress response may reduce overall heat production in the body.
Experts note that while occasional sensitivity to cold can be normal persistent symptoms should be discussed with a healthcare professional. Understanding the underlying biological reasons can help individuals address potential health issues such as nutrient deficiencies metabolic imbalance or chronic stress.
