Personality isn’t as stable as we originally thought. Modern research shows traits are patterns that evolve when you intentionally practice new ways of thinking and behaving.

The same personality traits that once helped you succeed can create friction later. The key isn’t “better” traits—it’s a better fit between your personality and your goals.

An individual’s genetics and their environment both shape their personality. However, opinions differ on the degree to which each of these factors influences personality, and how they contribute to ...