My brother is the only other immediate family member with a diagnosis (ADHD). However, my dad is very likely to also have ADHD, and my mom could easily have cyclothymia (or dysthymia; hard to tell). My grandma was diagnosed with depression a few years ago. My other grandma unfortunately died from Alzheimer's. And apparently I have a "crazy" great-great uncle who used to run around the streets naked. Maybe he was manic, maybe he was psychotic...or maybe he was healthy and had a rational explanation for his behavior! So I have a family history of MI, but I don't put much stock in it as an explanation for my bp because these disorders are so common. There are probably very few families who don't have at least one member with ADHD, depression, or Alzheimer's.