Feeling Cold

Heat is produced as a consequence of calorie burning. Consider how heated you become when you exercise. This is due to the fact that you are burning calories. Even when you're sitting, you're burning some calories. In hypothyroidism, however, your basal metabolic rate lowers, limiting the amount of heat you create. Furthermore, the thyroid hormone raises the temperature of brown fat, a form of fat that creates heat. Brown fat is essential for keeping the body warm in cold climes, but hypothyroidism hinders it from doing so.

That is why low thyroid hormone levels make you feel cooler than others. Around 40% of people with hypothyroidism are more susceptible to colds than usual. If you've always desired the room to be warmer than the individuals you live and work with, this might be genetic. However, if you've been feeling cooler than usual lately, it might be an indication of hypothyroidism.