What is the cause of indigestion in middle age?

First, people step λ into the middle-aged activities less, the digestive system is also slowly decline, so the digestive system is not very good. The first is the fact that the people nowadays play with cell phones and computers for a long time, do not sleep at night, do not get up in the morning, exercise and less, rest is not good, so this will also cause indigestion. There is also overeating, have a meal without a meal, this will also be indigestion, all kinds of reasons can make indigestion.