Smoking is when people light things called cigarettes or cigars and breathe in the smoke that comes out of them. Some grown-ups like to do this even though it can be very bad for their health.
In Indonesia, lots of grown-ups smoke cigarettes. In fact, it's one of the countries where the most people smoke in the world! Indonesians really like smoking, and lots of people there think it's cool or part of their culture.
But smoking can be really bad for your health. It can make your lungs get sick and even give you cancer or other serious illnesses. This is why some people are trying to stop smoking in Indonesia.
Even though smoking is bad for you, some grown-ups in Indonesia still do it. They might not know how dangerous it is, or they might think it's too hard to quit. But there are some people who are working to help Indonesians understand the dangers of smoking and find ways to quit if they want to.