One question that's often asked is whether anyone can be hypnotised - or are there people, maybe like you, Sam, who are less hypnotisable than others?

经常会被问到的一个问题是，是否任何人都能被催眠，或者是否有人，比如你，萨姆，比其他人更不容易被催眠？

According to him, there are two things which explain what makes one person more or less hypnotisable than another, as he told BBC World Service programme, The Why Factor.

据他说，有两点可以解释为什么一个人比另一个人更容易或更不容易被催眠，正如他向BBC全球服务节目The Why Factor谈到的。