Sleepwalking does tend to run in families. In addition, some individuals seem to be more susceptible than others although contributing factors for this have not specifically been identified. A study published in the concluded that a first-degree relative of a sleepwalker is ten times more likely to sleepwalk than the rest of the population. A study published in the journal concluded that twins are more likely to sleepwalk than non-twin siblings. Back to the original question, my brain’s opinion is that adults who sleepwalk need to be evaluated by health care professionals competent in the field, especially since additional information is being identified related to this potentially serious that may induce violent behaviors and affect health-related quality of life.