The three polys. The classic symptoms of high blood glucose are polyuria, polydipsia, and polyphagia. In plain English, that means excessive urination, excessive thirst, and excessive hunger. Any doctor who hears this trio of complaints will reach for a blood glucose meter.
The Social Security component of the FICA tax is regressive, meaning the effective tax rate regresses (decreases) as income increases beyond the compensation limit. The Social Security component is a flat tax for wage levels under the Social Security Wage Base (see Regular employees above).
Whether or not your Social Security income is taxable depends on your total income, including your Social Security plus any other income. Generally speaking, if your only income is Social Security, you probably don't make enough money to be required to file a federal tax return.