Thyroid disorders Archive

The thyroid gland releases hormones that affect the heart. Too little thyroid hormone slows the heart rate and may boost blood pressure and cholesterol levels, while too much can trigger abnormal heart rhythms and high blood pressure.

From x-ray treatments to other imaging tests, not all radiation is equal. See which exposures worry thyroid experts and which don’t.

Low thyroid hormone can quietly nudge LDL and glucose in the wrong direction. Learn more about the connection.

Several conditions can cause people to feel cold when others are comfortable. These include low body weight, an underactive thyroid, low red blood cell count (anemia), and Raynaud's phenomenon.

Hyperthyroidism means that there is abnormally high amounts of thyroid in the blood stream. Hyperthyroidism can happen when the thyroid gland either makes or secretes excess thyroid hormone or when people take a higher dose of thyroid pills than they need. Although some observational studies suggest hyperthyroidism may increase the risk of infection, hyperthyroidism should not make a person immunocompromised.

Some older adults feel cold frequently. This may result from age-related physical changes or an underlying condition. Examples of underlying conditions that might make a person feel cold include anemia, an underactive thyroid, diabetic neuropathy, peripheral artery disease, or Raynaud's phenomenon. People who experience coldness that interferes with their daily activities or sleep should talk to a doctor about it.

Hypothyroidism occurs when the thyroid gland falls short in producing hormones that regulate functions such as metabolism, heart rate, and digestion. Symptoms include weight gain, fatigue, menstrual irregularities, forgetfulness, dry skin and hair, and feeling cold.

An enlarged thyroid, called a goiter, or nodules on the gland are quite common, especially in women. Doctors pat down the neck during physical exams to help detect these conditions. Treatment depends on whether a lesion is cancerous or causing severe symptoms. Some goiters or nodules are simply monitored over time.