A lack of vitamin B12 (vitamin B12 deficiency) causes the signs and symptoms of pernicious anemia. Without enough vitamin B12, your body can't make enough healthy red blood cells, which causes anemia. Some of the signs and symptoms of pernicious anemia apply to all types of anemia. Other signs and symptoms are specific to a lack of vitamin B12.
Never understood why it's the norm for guys to wear watches on their left hand, and girls are supposed to wear them on the right hand. Date Posted: Apr 2, 2009 #2. Not gay. feminine.
The reason most people wear their watch on the left wrist is simply because most people are right-handed, and if you wear your watch on your stronger wrist, it will get bashed around and is more likely to be damaged. I think this is actually the origin of the so-called cultural norm of wearing watches on the left wrist.