I am Dr Rajiv Bajaj, a cardiologist from Delhi. If you want to be healthy, if you want to stay fine, if you want your heart to be fit till you are 90; it's not very difficult. You know tobacco is harmful, you know alcohol is harmful, the only other thing you need to know is that the modern diseases including heart trouble, including cancers, blindness, mental problems, diabetes, obesity, stones etc these are called modern diseases.
Modern diseases, we know for a long time, are caused by too much glucose in the modern diet, so if you want to be healthy you just need to cut down the things that contains glucose, increase traditional foods that contain less; so don't worry about cholesterol, start eating the things that your grandfather told you were healthy, learn the diet habits from those who are 90 and healthy. Mixed diet, less sugar, less jaggery and plenty of everything else; you'll be just fine; you'll never have a heart problem.