I have heard see this sketchy reference that people with Multiple Personality Disorder, or other mental disorders, have different physical features when having different personalities. For example, their allergies will change.

Is it true that people's senstivity to allergens can change this way? What is the source for this belief?

  • My allergies sure affect my mental state. – Moab Oct 31 '11 at 19:37
  • Psychosomatic effects do exist. So it's at the very least plasible. Would be nice to see if there's any sort of research. – user5341 Nov 1 '11 at 0:37

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