There isn’t a clearly identifiable standalone book titled exactly The Science of Personal Growth: How People Change, Evolve, and Improve by Bernardo Palos in widely indexed publishing databases. It appears to be part of a recurring set of similarly titled personal development works exploring how human change, habit formation, and psychological growth occur, which is a common theme in modern behavioral science and self-improvement literature.

However, the topic itself is well-established in psychology and neuroscience, and research in this area consistently shows that personal growth is not random—it follows structured, explainable mechanisms:

At the core of how people change is the interaction between motivation, identity, and repeated behavior. Studies on neuroplasticity show that the brain physically reorganizes itself in response to new experiences and consistent practice, meaning that personality and habits are not fixed traits but adaptable patterns shaped over time Psychologs Magazine. This is why repeated small actions—rather than one-time decisions—are what gradually produce lasting transformation.

Another major driver of change is goal orientation and internal motivation. Research on behavioral change highlights that people are more successful when they pursue approach-based goals (what they want to build or become) rather than avoidance-based goals (what they want to stop) because the brain responds more effectively to direction than restriction Science of People. In practice, this means identity-based framing (“I am becoming someone who…”) tends to outperform willpower-based restriction.

Modern theories of change also emphasize that transformation is rarely linear. Frameworks like Intentional Change Theory describe change as a multi-stage cycle involving vision, self-assessment, learning plans, experimentation, and supportive relationships. In these models, sustained growth happens when individuals maintain a compelling vision of their “ideal self” while continuously testing and refining behaviors in real environments Apple.

What ties all of this together is a simple principle: people evolve when their identity, environment, and repeated actions align in the same direction over time. When those three forces reinforce each other, change stops feeling like effort and starts becoming a default pattern.

If you want, I can turn this into a structured breakdown of the “science of personal growth” as a framework (like a step-by-step system or model).