My husband and daughter both have inatentive ADHD. My husband was just diagnosed with ADHD because of our discovery with our daughter. i can tell you since he was diagnosed and is getting treatment his depression has improved. From what I have found out in all the classes I have attended and on line chat, ADHD people experience depression because they are always down on themselves and they feel like a failure. I know with treatment and a lot of positive reinforcement for them they are doing great. Good Luck