Article in English: If you truly want to make serious life changes, you can't just say you will and let it alone. You need to commit. A behavior modification plan is an action-oriented way to commit and monitor your changes. Behavior modification means exactly what you think it means--it's a method of changing the way you act to certain stimuli in your environment.  Behavioral modification techniques allow you to replace undesirable behaviors with those which are desirable through a range of approaches. One of the most common approaches is positive reinforcement, which is the process of increasing a specific behavior by adding a reward when it occurs. Behavioral modification is a psychological concept that can be used for virtually all behaviors that you want to change by either completely getting rid of them or increasing how often you do them. You can use these principles to stop smoking, lose weight, get up earlier, or end your procrastination problem. Behavior modification requires that you thoroughly understand the undesirable behavior in order to replace it. You might ask yourself any or all of the following questions to get a better handle on the behavior and when/why/where/how it happens:  When do you do it? What times? How long does it last? Who is usually present when it happens? How does this person impact the behavior? What things are present in the environment a few minutes before it happens? What things are present in the environment a few minutes after it happens? For example, in order to lose weight you may want to reduce the amount of fast food you consume each week. You will first need to know how much fast food you are eating, and under what conditions. Just jumping right into a behavior modification plan without collecting any data beforehand can jeopardize your results. Spend several days or weeks carefully examining the occurrence of the behavior that you want to change, answering some of the questions that help describe it. Methods for measuring might be to tally the amount of fast food meals you eat each...

Summary in Vietnamese:
Xây dựng kế hoạch thay đổi hành vi. Quan sát và mô tả hành vi. Đo đạc cơ sở của bạn. Thiết lập hành vi thay thế. Theo dõi sự tiến bộ của bản thân.