Prevention of Mental Health Problems in People Exposed to a Recent Highly Stressful Event.

Brief intervention in mindfulness, of individual type, of four sessions of sixty minutes per week, in addition to individual tasks, according to protocol of brief intervention in developed mindfulness.

Brief systemic therapy intervention, of four weekly sessions of sixty minutes, with individual tasks and assignments, according to the protocol designed.

Brief intervention of traditional cognitive behavioral therapy with elements of positive psychology, of four weekly sessions of sixty minutes, with individual assignments and assignments, according to the protocol designed.