Keshan is a region located in northeastern China, known for its rich cultural heritage and historical significance. It is part of Heilongjiang province and is characterized by its beautiful landscapes, including mountains and rivers. The area is also known for its agricultural activities, particularly in the cultivation of crops like rice and corn. The name "Keshan" is also associated with Keshan disease, a type of cardiomyopathy linked to selenium deficiency. This condition primarily affects people in certain regions of China, including Keshan, and can lead to serious heart problems if not addressed through dietary changes or supplementation.