Final answer:
Ariel, who thrives on stress and is in control, would be labeled with a Type A personality, which includes being intensely driven, competitive, and having a sense of urgency with an increased risk of heart disease.
Step-by-step explanation:
Ariel, who thrives on stress and feels very much in control of his life, would likely be labeled with a Type A personality. Individuals with a Type A personality are characterized as intensely driven, competitive, and constantly in a rush to achieve more in less time. They often express a chronic sense of time urgency, impatience, and can exhibit hostility, particularly if they feel obstructed. These traits are contrasted with the more laid-back and relaxed Type B personality.
Friedman and Rosenman's research showed that Type A individuals tend to have a higher risk of heart disease, which underscores the health impacts of being highly driven and having a sense of time urgency. As such, while Ariel may feel in control, it's important to note the potential health risks associated with this personality type.