CONCLUSION: The relationship between impulsivity and suicide attempt is complex and moderated by diagnosis and SSS.

CONCLUSIONS: Our findings support the presence of elevated brain age in BD and lithium's suggested neuroprotective profile and highlight the influence of the brain age model, MRI scanner, and other confounders on predictions.

CONCLUSIONS: The ASERT can be feasibly deployed to track mood and can help schedule follow-up assessments in BD longitudinal studies.

CONCLUSIONS: This study illustrates that DNA methylation is altered in individuals with bipolar disorder and a history of suicide attempts in regions known to harbor suicide-related variants.