For a single return trip from Paris to Brussels, a point to point ticket is the best value for money and the cheapest train ticket. Best prices are available when buying the train ticket well in advance. For extensive train travel, a rail pass for France and Belgium is a better choice.
creÂ·tinÂ·ism. n. A congenital condition due to thyroid hormone deficiency during fetal development and marked in childhood by dwarfed stature, mental retardation, dystrophy of the bones, and a low basal metabolism. Also called congenital myxedema, cretinoid dysplasia.
As a result, the thyroid gland cannot make enough thyroid hormone. Worldwide, iodine deficiency is the number one cause of hypothyroidism. But iodine added to salt, food, and water has nearly eliminated this problem in the U.S. and other Western countries.ess common causes include: 1  Infections. 2  Medicines. 3  In rare cases, disorders of the pituitary gland or the hypothalamus (secondary and tertiary forms of hypothyroidism). 4  Excessive iodine, which, in food or medicines, can reduce the function of the thyroid gland. 5  Congenital hypothyroidism.