12 Reasons You Might Be Feeling Cold All the Time

You have a thyroid condition

When your body doesn’t produce enough thyroid hormone to regulate your metabolism, you could end up feeling cold all the time, says Margarita Rohr, MD, an internal medicine specialist at New York University Langone Medical Center in New York, NY. If you’re experiencing other symptoms of thyroid disease, such as hair loss, constipation, weight gain or fatigue, go to a doctor for a blood test for hypothyroidism, she says.