Type A personality is characterized by three core traits: competitiveness (desire to achieve and win), time pressure/impatience (feeling constantly rushed), and hostility/aggression (especially toward others or time constraints). These traits were originally identified as risk factors for cardiovascular disease. Mood fluctuations (mood swings) are not characteristic of Type A personality and are more associated with mood disorders, cyclothymia, or other personality types. This makes mood fluctuations the false statement.