Shen Y, Chan BSM, Huang C, et al. - Researchers conducted this cross-sectional study to investigate the prevalence of suicidal behavior and its relationship with attention deficit hyperactivity disorder (ADHD) among Chinese medical students. A total of 5,693 people (mean age 18.40 ± 1.49 years) took part in the study. Using online questionnaires, symptoms of suicidal behaviors, ADHD, anxiety, depression, tobacco and alcohol use were evaluated. Among medical students, the prevalence of lifetime suicidal ideation, suicide plans, and suicide attempts were 27.5, 7.9 and 14.8% respectively. ADHD is linked to an increased risk of suicidal behavior. ADHD predominantly inattentive type (ADHD-I) and ADHD combined type (ADHD-C) were strongly linked to suicidal behaviors independent of comorbidities. The finding emphasises the significance of addressing ADHD symptoms in the prevention of suicide.