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).
Mild iron deficiency anemia may not cause noticeable symptoms. If anemia is severe, symptoms may include: 1  Weakness, fatigue, or lack of stamina. 2  Shortness of breath during exercise. 3  Headache. 4  Trouble concentrating. 5  Irritability. 6  Dizziness. 7  Pale skin. 8  Craving substances that are not food (pica).