Mood changes, aggression, impulsivity and frustration are often present in those who have experienced TBI.

Source: https://countryfolks.com/traumatic-brain-injury-and-agriculture/

Overall, the study findings showed that greater energy intake amplified the relationship between the polygenic load of ADHD and impulsivity.

Source: https://neviewpoint.com/2023/03/30/can-poor-diet-and-lifestyle-behaviors-modify-genomic-susceptibility-to-impulsivity/

People with psychopathic traits have a lack of empathy, impulsivity, and a disregard for social norms and rules, while narcissists have an inflated sense of self-importance, entitlement, and a need for admiration.

Source: https://www.dailymail.co.uk/sciencetech/article-11798025/People-unhappy-height-likely-psychopaths.html?ns_mchannel=rss&ns_campaign=1490&ito=1490