By Speakin’ Out News Staff
Most people feel cold occasionally—during winter months, after swimming, or from sitting in air-conditioned spaces. But for some, feeling cold is constant. They shiver indoors, wear sweaters year-round, or struggle to warm their hands and feet even when temperatures are high.
Doctors say persistent cold intolerance is often not normal and may be a sign of an underlying health issue affecting metabolism, circulation, or hormones.
One of the most common causes is anemia, particularly iron-deficiency anemia. When the body lacks enough healthy red blood cells to carry oxygen, energy production drops and heat generation slows, leaving people feeling chilled and fatigued.
Another frequent culprit is hypothyroidism, a condition in which the thyroid gland does not produce enough hormone to regulate metabolism. A slowed metabolism means reduced heat production and may also cause weight gain, dry skin, hair thinning, constipation, and depression.
Poor circulation can also play a major role. Conditions such as diabetes, peripheral artery disease, Raynaud’s phenomenon, or smoking-related blood vessel damage can limit blood flow to the hands and feet, making extremities feel cold, numb, or even change color.
Low body fat may contribute as well. Body fat helps insulate and retain heat, so people who are underweight, have eating disorders, or engage in extreme endurance training may feel cold more often.
Other factors include dehydration, which reduces circulation; nutrient deficiencies such as low vitamin B12, folate, or protein; chronic stress or anxiety, which constricts blood vessels; and sleep deprivation, which disrupts temperature regulation.
Certain medications, including beta-blockers, sedatives, antidepressants, and some cancer treatments, can interfere with heat production or circulation. Hormonal changes during menopause, pregnancy, or perimenopause may also increase cold sensitivity.
When to See a Doctor
Feeling cold once in a while isn’t cause for concern. But persistent cold intolerance—especially when paired with fatigue, weakness, unexplained weight changes, hair or skin changes, or numbness—should be evaluated by a healthcare provider.
The Bottom Line
Feeling cold all the time isn’t just uncomfortable—it can be your body’s warning system. Paying attention and seeking medical guidance can help restore warmth, energy, and overall well-being.
