Common symptoms of insufficient ... ... With hypothyroidism, your body functions slow down, leading to weight gain, fatigue, and depression, compared to hyperthyroidism, which speeds things up and causes anxiety, increased energy, and weight loss...

February 10, 2024 - “But it can be really easy to out-eat the increase in metabolism that comes with hyperthyroidism,” cautions Dr. Smooke Praw. “So not everybody with a hyperactive thyroid loses weight.” · “Much like with hypothyroidism, if someone is having symptoms that they think could be consistent with hyperthyroidism, they should be seen by their doctor and have their thyroid levels checked.”

Hyperthyroidism means it’s producing too much thyroid hormone. Hypothyroidism means it’s not producing enough thyroid hormone.

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December 19, 2025 - It involves conditions that damage the thyroid gland itself (called primary hypothyroidism), the pituitary gland (called secondary hypothyroidism), or a part of the brain that stimulates the pituitary gland called the hypothalamus (called tertiary hypothyroidism). The underproduction of T3 and T4 can also cause symptoms affecting your hair, weight, digestion, heart rate, energy levels, moods, body temperature, and menstrual cycle, often in significantly different ways to hyperthyroidism.

September 16, 2021 - Symptoms like fatigue and an enlarged thyroid, also called a goiter, which may make your neck look swollen · Can be caused by autoimmune diseases, which cause your body to attack itself · Sources: MedlinePlus; National Institute of Diabetes and Digestive and Kidney Diseases · Image credit: iStock · September 16, 2021 · MedlinePlus: Hypothyroidism · MedlinePlus: Hyperthyroidism ·

November 30, 2022 - Understand what happens when your thyroid is overactive and learn about treatment for this condition.

November 23, 2021 - Symptoms between the two may present almost like polar opposites. With hyperthyroidism, you may find yourself with more energy and experience weight loss as opposed to weight gain. You may also feel anxious.

March 10, 2025 - In hyperthyroidism, you have too much thyroid hormone. This revs some things up. You may feel anxious, experience insomnia and get hot, sweaty and flushed. You can lose weight without meaning to and develop heart palpitations.

June 2, 2025 - For the most part, the symptoms of thyroid disease can be divided into two groups — those related to having too much thyroid hormone (hyperthyroidism) and those related to having too little thyroid hormone (hypothyroidism). The symptoms are often “opposites” between the two conditions.

Read about the symptoms of an overactive thyroid (hyperthyroidism), which include anxiety, hyperactivity and feeling tired all the time.

This disorder occurs in about 1% of all Americans and affects women much more often than men. In its mildest form, hyperthyroidism may not cause noticeable symptoms; however, in some patients, excess thyroid hormone and the resulting effects on the body can have significant consequences.

October 3, 2025 - Many of these symptoms, especially fatigue and weight gain, are common and do not necessarily mean you have a thyroid problem. ... Less often, hypothyroidism is caused by too much or too little iodine in the diet or by disorders of the pituitary gland or hypothalamus.1 Iodine deficiency, however, is extremely rare in the United States.

June 14, 2024 - Learn about the symptoms, causes and treatment of this immune system condition that results in too much thyroid hormone.

July 28, 2023 - Hyperthyroidism means that your thyroid gland is making too much thyroid hormone. You may also hear the term thyrotoxicosis. This also means there is too much thyroid hormone in your body. ... Everyone is different and you may not have all the symptoms.

Find out about overactive thyroid (hyperthyroidism), including what the symptoms are, when to see a GP, how it's treated and why it happens.

March 12, 2025 - The signs and symptoms of hypothyroidism vary, depending on the severity of your hormone deficiency. At first, you may not notice or you may simply blame them on getting older. But as your metabolism continues to slow, the signs and symptoms become more obvious. Hyperthyroidism is more difficult to diagnose as the signs and symptoms are similar to other conditions.