1 The Causes, Treatments, and Symptoms of Acute Thyroiditis The thyroid gland is a butterfly-shaped gland located in the middle of the lower neck. 2  Its main purpose is to control the body's metabolism, which is the rate at which your bâ¦.
Medicare is divided into a hospital insurance program and a supplementary medical insurance program. The Medicare hospital insurance plan is funded through Social Security payroll taxes.
Overview. Medicare is a federal health insurance program that covers millions of Americans. In general, you are eligible for Medicare if you are 65 or older, or you are younger than 65 and meet criteria for certain disabilities, or have End-Stage Renal Disease (ESRD). The Medicare basics have four main components.