Clinical Research Directory

Inclusion Criteria for the Screening phase: * Not planning to change residence within one year after recruitment * Spanish fluency * Living independently in the community * WhatsApp user * Age 30-60 years * Providing signed informed consent Exclusion Criteria for the Screening phase: * Unable to provide any of the required biological samples * Suffering any chronic condition that substantially hinders adherence to the trial protocol and/or affects pollutant analyses * Inability to understand the informed consent, questionnaires, or intervention * Already participating in another intervention trial at the time of recruitment * Pregnancy or lactation * Inability to communicate with the research team and/or to attend the follow-up visits Inclusion Criteria for the Intervention Phase: * Not planning to change residence within one year after recruitment * Spanish fluency * Living independently in the community * WhatsApp user * Age 30-60 years * Providing signed informed consent * Participant of the Screening phase Exclusion Criteria for the Intervention Phase: * Unable to provide any of the required biological samples * Suffering from any chronic condition that substantially hinders adherence to the trial protocol and/or affects pollutant analyses * Inability to understand the informed consent, questionnaires, or intervention * Already participating in another intervention trial at the time of recruitment * Pregnancy or lactation * Inability to communicate with the research team and/or attend follow-up visits