Our bodies are designed to regulate their internal temperature, within a narrow and defined range. And when it is cold outside, the body makes sure first, instinctively, that blood continues to flow to the internal organs to keep them warm to ensure efficient functioning.


This is done by drawing warm blood from the extremities and pushing it towards the heart, lungs and other internal organs, by constricting the blood vessels in the skin and reducing the amount of blood in it. At that time, it is normal for one of us to suffer from cold hands, feet, and fingers.


Signs of cold extremities


These events are understandable and normal, and one can often deal with them. Also, some normal people tend to feel cold on their feet and hands more than others, without there being any reason for that. But if a person feels and suffers from an annoying cold in the hands, feet and fingers at a normal temperature, or there are other accompanying symptoms such as a change of color in the fingers, then there may be a problem that requires knowing the cause behind it and working to remove it.


Vascular doctors report that cold hands are common, even if the person is not in a cold environment. It is often part of the body's natural response to regulating body temperature and should not be a cause for concern. But if you suffer from cold hands constantly, especially if this is accompanied by changes in color, cold hands may be a warning sign of a specific problem.


Health problems


Among the most important health problems that may cause an increase in the feeling of cold hands and feet, other than being in cold places, are:


1- Anemia:

In cases of anemia, especially anemia caused by either iron deficiency or vitamin B-12 deficiency (Vit. B-12 Deficiency), red blood cells that do not contain normal amounts of hemoglobin or are weak in their structure cannot. 


By carrying and supplying distant body tissues with the necessary quantities of oxygen, which causes coldness in those distant extremities, such as the hands and feet. Also, iron deficiency may impair the activity of thyroid hormone metabolism, whose functions are to regulate thermogenesis in the body. And that vitamin B-12 deficiency affects nerve function.


2- Arterial diseases:


When the arteries narrow or malfunction, blood flow to the hands and feet decreases. There are several types of arterial diseases that may cause cold hands and feet. Including peripheral artery disease (PVD), which may affect, to varying degrees, about a third of people over the age of 50 who suffer from diabetes.


It is a condition that results from damage to the arterial wall in the lower extremities when the accumulation of cholesterol and fats on their walls causes their narrowing and hardening. And then the blood flow weakens, especially when the need for more blood flow increases, that is, in cases of exposure to cold weather, or in cases of physical effort to move the feet and hands, and the need for more oxygen, glucose, water and other nutrients.


Hypotension suddenly or gradually, for any reason, is also the cause of an increase in feelings of coldness in the hands and feet.