Introduction:
Smoking is very common among adolescents; nowadays young people start smoking very early, before turning 15 years old. Effective primary prevention interventions are needed to contrast tobacco use in young age. For these reasons, the Italian League Against Cancer Milan-MB (LILT) has developed Specchio Riflesso (SR), an innovative intervention based on social theatre methodology – as opposed to traditional sit-desk interventions – to promote body engagement as an active health learning tool. The aim was to promote preadolescents’ self-reflection on their identity and their role within a group and facilitate their critical reflection towards tobacco smoking. Aim of this contribution was to evaluate its effectiveness.

Material and Methods:
One hundred and ninety-one students were involved in SR, consisting of two sessions in the first class and two sessions in the second class of the secondary school. Positive and negative emotions and attitudes toward smoking, and self-efficacy to resist peer pressure and to express opinions have been assessed trough questionnaires. A group of 324 preadolescents not involved in SR has been compared to the experimental group undergoing intervention.

Results:
Results attest the efficacy of SR to diminish the attractiveness of cigarettes, by counteracting the formation of positive emotions and attitudes toward smoking and promoting higher assertiveness and self-efficacy to express opinions.

Conclusions:
To sum up, SR is an effective intervention to prevent tobacco use in secondary school.