Is it possible for a young adult to have dementia caused from untreated hypothyroidism?

symptoms of dementia are definately ociated with hypothyroidism. synthroid does not help some people much. it is a form of thyroid hormone that needs to be converted in the body to the active form. some people cannot convert it to the active form. (your lab results can still look normal) my mom took synthroid and it did NOT work, although her lab results looked normal. she was changed to armour(the active form) and was better in 3 days. good luck