<p>You might have noticed that some people’s bodies are always cold. No matter how hot it is outside, they only feel cold. Here are the main reasons why this happens.</p><img><p>The circadian rhythm helps regulate our body temperature during sleep. So, when you don’t get proper sleep, there’s a higher chance of feeling cold.</p><img><p>When blood circulation isn’t proper, you can feel cold. You can improve blood flow by exercising regularly, eating a healthy diet, and avoiding smoking.</p><img><p>Body fat helps keep you warm. But sudden weight loss can cause you to feel cold.</p><img><p>Vitamin B12 is key for many bodily processes. Its deficiency can cause fatigue, loss of appetite, constipation, and also make you feel cold all the time.</p><img><p>People with anemia are also more likely to feel cold all the time. It can also cause fatigue, shortness of breath, and headaches.</p>