January is Thyroid Disease and Mental Health Month in Canada

There are many types of Thyroid Disease. To bring attention to the different disorders, we are featuring a different Thyroid topic each month. For the month of August we are focusing on Thyroid Disease and Mental Health.


Thyroid Function in Health & Psychiatric Disorders

Thyroid hormone “Thyroxine-T4 & T3” is essential for proper body functions, both physical and mental. It affects DNA and protein synthesis, body weight, heart rate, blood pressure, respiration, muscle strength, sleep, sexual functioning, mental functioning, such as cognitive ability, affect and mood stability among many others.


• Role of stress & emotional upheaval – predispose to thyroid dysfunction
• Alternatively, emotional upheaval is the result of evolving hyperthyroid state
• No consistent personality type


• Develops slowly, minor vague early complaints can make early diagnosis difficult
• Frequently, mental symptoms are the earliest to bring to medical attention

Clinical picture:

  • •anxiety, tension
    •mood lability
    •distractible overactivity
    •fluctuating depression & mood states
    •sensitivity to stimuli and environment, for example: noise
    •psychotic symptoms, delirium can accompany “thyroid crisis”
    • symptoms respond and resolve with treatment

Clinical picture:

    • mental slowness
    • loss of interest and initiative
    • cognitive and memory difficulties
    • muddled and not clear thinking
    • depression with paranoid trends
    • organic psychosis
    • Myxedema dementia in severe cases

Help us to Help Others


  • Public education programs
  • Advocacy for improved thyroid care
  • Annual June is Thyroid Month activities

Patient Support

  • Toll free telephone Help line and email access for thyroid patients
  • Thyroid Health Guides and other educational material
  • Thyrobulletin newsletter
  • Thyroid.ca site with the latest news

Thyroid Research

  • Annual Research Awards program provides funding for projects carried out in Canadian thyroid laboratories.