by April McCarthy; Prevent Disease
Feeling cold is a frequent complaint among women, often due to physiological differences, hormonal influences, and various internal factors that disrupt the body's thermostat. The body relies on chemical reactions to generate heat, and when essential nutrients or mechanisms are lacking, persistent coldness can result.
1. Insufficient Iron Levels
Iron is a vital mineral that forms a key part of hemoglobin, the molecule in red blood cells responsible for carrying oxygen from the lungs to the rest of the body. This oxygen delivery is essential for every cell to function correctly. Without enough iron, your body cannot produce sufficient healthy red blood cells, leading to shivering and a constant feeling of cold.
Iron deficiency also slows down thyroid activity, which can result in an underactive thyroid. While iron supplements may help, the best natural sources include organic grass-fed meats, eggs, and leafy greens such as spinach.
2. Low Muscle Mass
Muscle tissue generates heat to help maintain body temperature, so having insufficient muscle tone can leave you feeling chilly. Moreover, greater muscle mass boosts your metabolism, which helps counteract that persistent cold sensation. Thyroid hormones play a critical role in signaling skeletal muscle maintenance and overall physiological balance.
A reciprocal relationship exists: more muscle supports better thyroid function. Incorporating resistance training into your exercise routine helps build the muscle that acts like an internal furnace, allowing you to shed that extra wool blanket.
3. Poor Sleep Quality
Body temperature typically drops when you don't get enough restful sleep, because activity in the hypothalamus—the brain's control center for temperature regulation—decreases. Consequently, sleep deprivation impairs the nervous system and the regulatory mechanisms that manage body temperature. When you're fatigued after a restless night, your metabolism also operates at a slower pace.
4. Dehydration
One of the most overlooked reasons for feeling cold is inadequate hydration. When you are properly hydrated, water helps trap heat in the body and releases it gradually throughout the day, keeping your internal temperature within a comfortable range and reducing sensitivity to extremes.
With less water in your system, you become more susceptible to temperature extremes, both hot and cold. Water is a crucial component of blood volume and plays a major role in thermoregulation.
5. Vitamin B12 Deficiency
The signals from your core temperature combine with warmth sensors in your skin. Vitamin B12 is essential for producing red blood cells, and a deficiency directly affects thermoregulatory responses. This can lead to a chronic feeling of cold, especially in environments where the temperature is more than 15 degrees colder than body temperature.
Sometimes low B12 levels stem from an absorption issue within the body. If your diet is rich in B12 but you still feel cold all the time, consult your doctor for a vitamin B12 test. Organic lean meats and eggs are among the best dietary sources of B12.
