Complete the summary using the words from the box below.

alcohol     appropriate     cue     cycle     negative     pill   psychology     reward     tobacco     discipline

Teenagers often have bad habits. Most can be stopped by taking 【小题1】action. However, habits like 【小题2】and 【小题3】 abuse can lead to serious addictions. According to modern 【小题4】, to change bad habits, we must first analyse them using the “habit 【小题5】”. To fix or improve a bad habit, we must first find out what the 【小题6】is. Then we must change the old【小题7】 routine to something more positive. If successful, we will feel a sense of 【小题8】 and our bad habit may disappear. Changing a bad habit is difficult, and it is easy to make excuses and give up. We need to make up our minds and show some 【小题9】, and make small changes over time. There is no magic【小题10】 to help us, but changing will ensure we have a happy and healthy life!