The brain can be influenced by external factors from "summary" of The Brain by David Eagleman
The brain, that three-pound organ housed within the skull, is the seat of our consciousness, the command center for our thoughts and actions. But despite its complexity and importance, it is not an isolated entity. Rather, the brain is constantly in communication with the world outside of us, processing information from our environment and responding accordingly. External factors have a profound impact on the brain, shaping its development and function in ways both subtle and significant. From the moment we are born, our brains are bombarded with sensory input - sights, sounds, smells, tastes, and textures - that help to wire and rewire the intricate network of neurons within. These inputs, whether they come from the gentle touch of a caregiver or the harsh glare of a fluorescent light, have the power to sculpt the brain's architecture, influencing everything from our perception of the world to our ability to learn and remember. But the brain's susceptibility to external influences does not end with the physical environment. Our thoughts, emotions, and social interactions also play a crucial role in shaping the brain's structure and function. The words we hear, the faces we see, the relationships we form - all of these experiences leave their mark on the brain, altering its neural pathways and chemical signaling systems in ways that can have lasting effects on our behavior and well-being. In this dynamic interplay between the brain and its surroundings, the concept of neuroplasticity emerges as a central theme. Neuroplasticity refers to the brain's remarkable ability to adapt and change in response to external stimuli, a capacity that underlies our ability to learn new skills, recover from injury, and even rewire our thinking patterns. Far from being a fixed and immutable organ, the brain is a highly malleable and responsive organ that is constantly being shaped by the world around us. In light of this understanding, it becomes clear that the brain is not an island unto itself, but rather a dynamic and interactive system that is deeply intertwined with the external world. By recognizing the profound influence of external factors on the brain, we gain a greater appreciation for the complexity and adaptability of this extraordinary organ. Whether through physical sensations, social interactions, or mental activities, the brain is constantly being shaped and reshaped by the rich tapestry of experiences that make up our lives.
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