State income tax is imposed at a fixed or graduated rate on taxable income of individuals, corporations, and certain estates and trusts. The rates vary by state. Taxable income conforms closely to federal taxable income in most states, with limited modifications.
Like other brain illnesses, anxiety disorders may be caused by problems in the functioning of brain circuits that regulate fear and other emotions. Studies have shown that severe or long-lasting stress can change the way nerve cells within these circuits transmit information from one region of the brain to another.
What REALLY makes us worry: New region of the brain discovered that controls anxiety. 1  Discovery could have major implications for treating anxiety disorders. 2  Team found neural circuit that directly influences anxiety. 3  Over 18 percent of American adults suffer from anxiety disorders.