Too Many Immigrants. The main problem with Canada s current immigration system is quite simple. It s that the number of people admitted to Canada on both a permanent and temporary basis is way too high -- from a long-run structural point of view, not to mention from a short-run cyclical point of view.he main problem with Canada s current immigration system is quite simple. It s that the number of people admitted to Canada on both a permanent and temporary basis is way too high -- from a long-run structural point of view, not to mention from a short-run cyclical point of view.
1 In your nervous system, B-12 deficiency causes symptoms affecting your nerves (numbness, tingling, tremors, balance problems) and your mind (depression, brain fog, mood swings, and, in rare cases, hallucinations and psychosis).
List of conditions known to cause mood swings. 1  Anabolic steroid abuse. 2  Attention deficit hyperactivity disorder. 3  Autism or other pervasive developmental disorder. 4  Bipolar disorder or cyclothymia. 5  Borderline personality disorder. 6  Dementia, including Alzheimer's disease, Parkinson's disease and Huntington's disease. 7  Epilepsy.