While changes in your eating habits, diet or stress levels can be normal reasons for heartburn, a persistent one should be cause for alarm. Anytime you have heartburn that does not go away, or gets worse as the days go by, see a doctor. These are usually signs of either throat or stomach cancer.
The sad truth is that most people tend to put off visiting their doctors as often as they should. This is even done when they are experiencing symptoms such as those described here. Because cancer is so deadly, can spread and attack so fast, and no cure has been found, ignoring the signs can be fatal. Using a pre-emptive approach towards cancer, or any diseases, is the only way to be able to combat or beat them.