What's happening biologically?
We know, the brain is a highly integrated organ, which has multiple unique compartments specializing in different processes. The growth is interdependent, so one cannot have so one cannot have optimum cognitive abilities with impoverished social-emotional skills.
According to developmental research findings, children master different skills at different ages and stages. This implies that opportunities for a variety of effective interventions are present throughout early childhood. This develops more complex brain circuits built upon the initially laid foundations.
The brain architecture is composed of more than a million highly integrated neural connections. These circuits are wired owing to the ongoing interactive influences of experience, environment and genetics.
These circuits are formed through genetics but shaped through the environment.