How do lifestyle factors contribute to disease?

For example, being a couch potato (not exercising at all) can increase your chances of cardiovascular diseases and heart attacks, leading to problems with heart and blood flow. 

While eating too much sugar snacks that are unhealthy can lead to diabetes. Most people fight with diabetes through there entire life because they couldn't maintain a healthy diet. 

Those are 2 reasons^ :)

love, the Pineapple.