This article is an approach to the effect of social relations on mental health in early adolescence of popular origin in Chile. Through the use of quantitative analysis techniques applied to the geas Chile survey and supported by Hartmut Rosa’s theory of resonance as a way of linking with the world, it is shown how adverse experiences derived from alienated or negative relationships cause a detriment in the mental health of Chilean adolescents. And a contrario sensu, it is also shown how resonant relationships have positive effects on the mental health and identity of young people, highlighting how a good body self-image and a trusting relationship with their caregivers are protective resources against mental health detriments.