Inclusion Criteria:  Scoring less than or equal to 26 on the Composite Scale of Morningness.  'At risk' in one of the five health domains. The risks associated with eveningness have been documented in five health domains: the emotional domain, the cognitive domain, the behavioral domain, the physical domain and the social domain. "Risk" is defined as +/-1.0 standard deviation from the average mean (>60 for the negatively worded concepts, and <40 for the positively worded concepts) on the primary screening instrument for each domain.  The measure to be used for the Emotional domain is the PROMIS-Global Mental Health scale. The cut-off that denotes risk is less than or equal to 40. The measure to be used for the Cognitive domain is the PROMIS-Cognitive Function scale. The cut-off that denotes risk is less than or equal to 40. The measures to be used for the Behavioral domain are the PROMIS- Alcohol Use and PROMIS-Severity of Substance Use scales. The cut-off that denotes risk is greater than or equal to 60. The measures to be used for the Social domain is the PROMIS-Ability to Participate scale. The cut-off that denotes risk is less than or equal to 40. The measure to be used for the Physical domain is the PROMIS-Global Physical Health scale. The cut-off that denotes risk is less than or equal to 40. Age between 18 and 26. English and Spanish language fluency. Able and willing to give informed assent.  Exclusion Criteria:  Presence of substance abuse/dependence, mental illness, physical illness, suicidality or developmental disorder only if it makes participation in the study unfeasible or if there is a significant risk of harm and/or decompensation if treatment of that comorbid condition is delayed due to participating in this study. A medication-free group is unrepresentative. Hence, participants will not be excluded on the basis of stable use of medications (> 4 weeks). Nonetheless, the investigators have a careful medication tracking system in place so 'other treatments' can be entered as an initial factor in all analyses.