Apologizing too much signals to ourselves and others that we are ashamed or regretful of something about our very presence. This is best seen in situations where you clearly did nothing wrong in the moment (e.g., bumping into a chair and apologizing to it). If there is nothing to take the blame for, why do you apologize?  Emotionally sensitive people who care about the feelings and experiences of others more than their own may over-apologize. This can result in a steady but hard to recognize disrespect or denial of one's own value.  Studies have shown that apologies more frequently reflect shame than a belief that a wrong has been committed. Men tend to apologize much less frequently than women, and research suggests that this is because women tend to have a wider sense of what constitutes offensive behavior. Men often have a very limited sense of what might be seen as offensive. Because more possible offenses exist in women's perceptions, they are likely to feel responsible more often than men do. Excessive apologizing in women is partly an issue of social conditioning for which you are not at fault. While changing this habit requires effort, it can be comforting to know that it is not necessarily something "wrong" with you. How are others in your life affected when you apologize too often? Not only are you likely to be discounted as inadequate or incompetent, but people close to you may begin to suffer, too. Apologizing may cause others to feel isolated for not understanding the offense or as if they are so threatening and harsh that their behavior is causing you to apologize frequently. For example, if you say "sorry, I arrived a few minutes early" the other person may wonder what is causing you to walk on eggshells with her. Perhaps she will also feel that her big smile when you walked in early was ignored or unappreciated.

TL;DR in Vietnamese:
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