underactive


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Related to underactive: underactive bladder, Underactive thyroid

underactive

(ŭn′dər-ăk′tĭv)
adj.
Characterized by insufficient or abnormally low activity: an underactive area of the brain.

un′der·ac·tiv′i·ty (-ĭ-tē) n.

underactive

Functioning at less than full efficiency or productivity; said, for example, of glands such as the thyroid or the adrenals.
References in periodicals archive ?
Medications also can affect thyroid function--for example, amiodarone (Corderone[R], Pacerone[R]), which treats heart arrhythmias, can induce both an overactive and underactive thyroid.
If an underactive thyroid is mismanaged or left untreated, it can lead to goitre, heart disease and other life-threatening conditions.
On the other hand, Emirati women are more likely to suffer from an underactive thyroid because of their genetic makeup."
Cases of hypothyroidism( underactive thyroid) are more common than hyperthyroidism ( overactive thyroid).
In some cases, "it's debatable whether the thyroid is underactive or whether it's an adjustment of hormone economy," Garber said.
Much more common is an underactive thyroid, called hypothyroidism.
Thyroid disorder can take the form of too much thyroid hormone (overactive thyroid, or hyperthyroidism) or too little (underactive thyroid, or hypothyroidism, which is the most common type).
Tests showed the new face of Superdrug had an underactive thyroid and she was prescribed medication she must take for the rest of her life.
Doctors prescribe a synthetic version of [T.sub.4] called levothyroxine (Synthroid, Levoxyl) when the gland is underactive or removed because of thyroid cancer or Graves' disease, the most common cause of hyperthyroidism in the United States.
For example, if the thyroid is underactive because the hypothalamus is suppressed (as is common in fibromyalgia and/or chronic pain), the TSH test, which is the most often used to evaluate thyroid function, may appear to be normal or even suggest an overactive thyroid.
"This is the first study to identify underactive brains in people at risk for OCD." The psychiatric anxiety disorder tends to run in families and is marked by recurrent and persistent thoughts and impulses, such as uncontrollable and repeated hand washing.