The number two;(1,2), is one, less than three (3). Bi, is defined as being two(2), -polar infers two(2). There is not a fine line between the number one and the number two. 1, 1 1/2, 1 2/3, 1 3/4, 2. If two (2) is a disorder, "split" than, what is the disorder for numbers 1,3? The entire phonetics, (Mental Health), doesn't exist in a medical arena. The Mid-Evil approach to your brain; mind is well into the Dark Ages, year 2014; there is no light at the end of this tunnel. The number three, Tri-polar?