This is a tricky question - new studies actually show that people who skip breakfast aren't at all heavier than people who don't skip it. The myth that people who regularly breakfast aren't as heavy as people who do skip it has arisen through bad scientific studies that were being conducted in the past. Newer ones, however, show that this isn't the case. For that reason, your question is invalid :)
1.your genes or your family history.
2.a traumatic brain injury
3 . biological factors like chemical disorders in your brain
4.your life experiences such as stress or a history of abuse.
The two individuals may have a different reaction to the same stressor because they each have different tolerability so whereas one could be fine the other could have a bad response. hope this helps.
