Inclusion Criteria:  Adults (≥65 years old) Undergoing elective ambulatory surgery Participants must be competent to provide informed consent, Be proficient in English (Grade 6 reading level) Have cognitive, visual, and physical capability necessary to complete the questionnaires and/or online assessment tool. Participants completing the BHA should be at least somewhat comfortable or very comfortable with using a computer and mouse and should use a computer at least once a week.  Exclusion Criteria:  Inability to speak, read or understand English Previous intracranial surgery A previous diagnosis of major NCD e.g. dementia, and current significant uncontrolled psychiatric disorders.