[State of mind in adolescents in Barcelona province (Spain): Evolution, associated factors and impact of the pandemic.].

Objective: To analyse the evolution of state of mind in adolescents in the province of Barcelona for the last six years and the specific impact of the pandemic and its experience. Likewise, analyse the associated factors both in pre-pandemic period and during.

Methods: Since 2015/2016 a Questionnaire on health related habits was carried out among 4 year high school students to which a COVID-19 chapter was added in the 2020/2021 academic year.

[Prevalence and associated factors to energy drinks consumption among teenagers in the province of Barcelona (Spain)].

Objective: To analyse the prevalence of energy drinks consumption among 4th year high school students in the province of Barcelona (Spain), and its association to sociodemographic characteristics and health related habits.

Method: Cross-sectional study including 8078 students from randomly selected high schools in 41 municipalities. Sociodemographic and health characteristics were collected from the Questionnaire on health related habits.