To remember the right hand rule, write the xyz order twice: xyzxyz. 1  Next, find the pattern youâre looking for: 2  xy => z (x cross y is z) 3  yz => x (y cross z is x; we looped around: y to z to x) 4  zx => y.
Huntington disease is a progressive brain disorder that causes uncontrolled movements, emotional problems, and loss of thinking ability (cognition).Adult-onset Huntington disease, the most common form of this disorder, usually appears in a person's thirties or forties.untington disease is a progressive brain disorder that causes uncontrolled movements, emotional problems, and loss of thinking ability (cognition).
Huntington's disease is a slowly progressive condition that interferes with the movements of your body, can affect your awareness, thinking and judgement and can lead to a change in your behaviour. The symptoms occur because of damage and death of some of the brain cells (neurons) in particular parts of your brain.untington's disease is an inherited (genetic) condition that affects the brain and nervous system. 'Genetic' means that the condition is passed on through families by special codes called genes.