| Characteristic | Mania | ADHD | 
|---|---|---|
| Primary symptoms | Elevated or irritable mood, increased energy, decreased need for sleep, talkativeness, distractibility, increased self-esteem, excessive involvement in activities | Inattention, hyperactivity, impulsivity | 
| Mood | Elevated, irritable, or expansive | Variable, may include irritability, anxiety, or depression | 
| Energy and activity level | Increased energy, restlessness, agitation | Hyperactivity, fidgeting, restlessness | 
| Thought patterns | Racing thoughts, flight of ideas, grandiosity | Distractibility, disorganization, difficulty sustaining focus | 
| Impulsivity | Impulsive decisions, reckless behavior, excessive spending | Impulsive actions, interrupting others, blurting out answers | 
| Sleep patterns | Decreased need for sleep, insomnia | Difficulty falling asleep, daytime fatigue | 
| Social behavior | Increased social behavior, talkativeness, intrusive behavior | Social difficulties, peer rejection, difficulty with social cues | 
| Focus and attention | Distractibility, lack of focus, inability to complete tasks | Differentiation difficulty, difficulty sustaining focus | <...>