In January 2013, the Qatar Statistics Authority estimated the country's population at 1,903,447, of which 1,405,164 were males and 498,283 females. At the time of the first census, held in 1970, the population was 111,133.
A metallic taste in the mouth can be attributed to many factors, but the most common causes of this are: 1  Excessive Iron levels in the blood.  Side effect of medications (especially ones used to treat high blood pressure, arthritis and anti-depressants)
Anxiety and Metallic Taste - The Connection. Anxiety does appear to cause a metallic taste in people's mouths. What's interesting, however, is that there doesn't appear to be a medical reason for it. Even during the fight or flight response, there isn't necessarily anything activated in the taste buds that should be creating this metallic taste.