Which of the following are common manifestations and potential consequences of an adolescent's feelings of invulnerability? (Select all that apply)

A. Increased risk-taking behaviors are common as adolescents may feel invulnerable and engage in dangerous activities without considering the consequences. B. Greater incidence of accidental injuries is often a result of risk-taking behaviors, which can be influenced by feelings of invulnerability. C. Reduced mental health issues is incorrect as feelings of invulnerability can lead to increased stress and anxiety, negatively impacting mental health. D. Improved social relationships are not guaranteed; feelings of invulnerability may actually lead to conflict or isolation if risk-taking behaviors are harmful. E. Higher likelihood of substance abuse can result from a belief in invulnerability, leading adolescents to underestimate the risks associated with drug and alcohol use. F. Enhanced academic performance is not directly linked to feelings of invulnerability and may suffer due to distractions from risky behaviors.