Iodine deficiency little iodine in the diet, typically remote inland areas and semi-arid equatorial climates where no marine foods are eaten, iodine deficiency gives rise to hypothyroidism, symptoms of which are extreme fatigue, goiter, mental slowing, depression, weight gain, and low basal body temperatures. Iodine deficiency is the leading cause of preventable mental retardation, a result which occurs primarily when babies or small children are rendered hypothyroidic by a lack of the element. The addition of iodine to table salt has largely eliminated this problem in the wealthier nations, but as of March 2006, iodine deficiency remained a serious public health problem
The Trace (Land Between the Lakes) The Trace (Land Between the Lakes) The Woodlands Trace National Scenic Byway, also known as "The Trace," is the major north–south roadway that traverses the Land Between the Lakes National Recreation Area in two counties in western Kentucky and northwestern Stewart County in northwest Middle Tennessee. It is estimated to be in length. The road is part of the National Scenic Byway system. Although it is not signed, it is listed on LBL's road logs as FD-100. The road is called "The Trace", which is what many roads and paths were called in pioneer times. "Trace" is short for "Buffalo