| 1 | The most striking example of this is hypnotism. | |
| 2 | He uses hypnosis as part of the treatment. | |
| 3 | The downside is that some people do not respond as strongly to hypnosis as others. | |
| 4 | Singer himself learned how to hypnotise while a student at Cambridge University. | |
| 5 | There are many ways of doing this, but the most efficient way is through hypnosis . |