A study by The National Center for Biotechnology Information (NCBI), analyzed data from 1999 to 2018, examining 57,540 people. It found that the prevalence of thyroid disease increased to 5.05% from 2015-2018, up from earlier years. The study noted that the highest rates of thyroid disease were among non-Hispanic Whites (8.1%), people aged 60 and older (15.4%), and women (7.6%). The risk factors for thyroid disease included being older, female, non-Hispanic White or Mexican American, having a higher body mass index, and having higher education and income levels.

Symptoms of hyperthyroidism may be vague, and often mimic other illnesses and conditions. If someone has a very mild form of hyperthyroidism, they may not notice any symptoms. An overactive thyroid often leads to discomfort or even disability that may disturb their everyday activities or routine. Below is a list of the various symptoms:

An often overlooked cause of anxiety, palpitation, trembling hands and abnormal weight loss is hyperthyroidism - a condition of the thyroid gland that can cause any or all of the above symptoms.