Vancouver is the most densely populated Canadian municipality, and the fourth most densely populated city over 250,000 residents in North America, behind New York City, San Francisco, and Mexico City.
If a person has too little thyroid stimulating hormone, it is most likely that their thyroid gland is making too much thyroid hormone, ie, they have an overactive thyroid or hyperthyroidism, which is suppressing the thyroid stimulating hormone.f a person has too little thyroid stimulating hormone, it is most likely that their thyroid gland is making too much thyroid hormone, ie, they have an overactive thyroid or hyperthyroidism, which is suppressing the thyroid stimulating hormone.
Any number of things can cause the thyroid to malfunction, including exposure to radiation, too much or too little iodine in the diet, medications like lithium, and autoimmune disease. And the incidence of thyroid disease rises with age. Too much thyroid hormone () speeds the metabolism, causing symptoms like , , weight loss and anxiety. Too little (hypothyroidism) can cause physical fatigue, weight gain and sluggishness, as well as depression, inability to concentrate and memory problems.