A condition in which the thyroid gland doesn’t produce enough thyroid hormone.

Hypothyroidism’s deficiency of thyroid hormones can disrupt such things as heart rate, body temperature and all aspects of metabolism. Hypothyroidism is most prevalent in older women.

Major symptoms include fatigue, cold sensitivity, constipation, dry skin and unexplained weight gain.
Treatment consists of thyroid hormone replacement.


  • Tiredness.
  • Being sensitive to cold.
  • Weight gain.
  • Constipation.
  • Depression.
  • Slow movements and thoughts.
  • Muscle aches and muscle cramps.

Include radioactive iodine, a hormone by the butterfly-shaped gland in the neck (thyroid). Hyperthyroidism is the production of too much thyroxin hormone.

Symptoms include unexpected weight loss, rapid or irregular heartbeat, sweating, and irritability, although the elderly often experience no symptoms.

Treatments medication and sometimes surgery.


  • Nervousness, anxiety and irritability.
  • Hyperactivity – you may find it hard to stay still and have a lot of nervous energy.
  • Mood swings.
  • Difficulty sleeping.
  • Feeling tired all the time.
  • Sensitivity to heat.
  • Muscle weakness.
  • Diarrhea.