What is the largest city in North Korea? The largest city in North Korea is Pyongyang, the country's capital city. At the time of the 2008 census it had 3,255,288 residents, making it the only city in North Korea with a population of more than one million people.
Long-term exposure to high levels of methylmercury causes effects primarily on the nervous system. Symptoms of long-term high level methylmercury exposure include disturbances in vision, hearing and speech, as well as tingling and numbness in fingers and toes, lack of coordination and muscle weakness.any types of fish do not contain high levels of mercury. Eating a variety of different types of fish and shellfish is a good way to gain the nutritional benefits of eating fish while balancing concerns for mercury exposure.
Symptoms Of High Levels Of Hemoglobin Or Red Blood Cells. Polycythemia is the opposite of anemia and sees patients have an excess of red blood cells and high hemoglobin levels. In case you have polycythemia, you may experience headaches, dizziness, problems with vision, and flushing.