If you have diabetes, high blood pressure, heart disease, or a family history of kidney problems, you are at risk for kidney disease. Kidney disease is serious, but if you catch it early, you can slow it down or stop it. Ask your doctor to check your kidneys.
South Asia basically refers to India and the few countries around it. It is known as a subcontinent as it was not originally part of the landmass known as the Asian continent. This can be seen from the presence of the Himalayas.
Indian subcontinent is a wide section of the continent of Asia comprising mainly of the countries lying significantly on the Tectonic Plateau of India. The literal meaning of the term subcontinent implies having a certain geographical or political independence from the rest of the continent.