The ability to manage your emotions and remain calm under pressure has a direct link to your performance. TalentSmart has conducted research with more than a million people, and we’ve found that 90% of top performers are skilled at managing their emotions in times of stress in order to remain calm and in control.
If you follow my work, you’ve read some startling research summaries that explore the havoc stress can wreak on one’s physical and mental health (such as the Yale study, which found that prolonged stress causes degeneration in the area of the brain responsible for self-control). The tricky thing about stress (and the anxiety that comes with it) is that it’s an absolutely necessary emotion. Our brains are wired such that it’s difficult to take action until we feel at least some level of this emotional state. In fact, performance peaks under the heightened activation that comes with moderate levels of stress. As long as the stress isn’t prolonged, it’s harmless.
Source: 10 ways smart people stay calm