Mixed connective tissue disease (MCTD) is a rare autoimmune disorder. An autoimmune disorder is one in which the immune system mistakenly views the bodyâs own tissues as âinvadersâ and attacks them.ixed connective tissue disease has features of three other connective tissue diseases: 1  Systemic lupus erythematosus (SLE) â An inflammatory disease that can affect many different organs. 2  Symptoms include fever, fatigue, joint pains, weakness, and skin rashes on the face, neck, and upper body.
Almost all of the US state of Arizona does not use Daylight Saving Time (DST), and uses the time zone Mountain Standard Time (MST) all year.
Hawaii and Arizona are the two U.S. states that don't observe daylight saving time, though Navajo Nation, in northeastern Arizona, does follow DST, according to NASA. And, every year there are bills put forth to get rid of DST in various states, as not everyone is keen on turning their clocks forward an hour.