India is 2nd most populated country in the world..which has many many diseases. Most common among them is diabetes, hypertension, thyroid diseases, dyslipidemia primarily occurs in individuals with altered food habits, positive family history, certain infections... On the other side some diseases which are communicable diseases like malaria, dengue, typhoid, etc.... So people should change their lifestyle, protect the environment from pollution... With any small health-related issues, consult a physician and stay happy.