Regular meditation practice has been shown to increase gray matter density in areas associated with memory, learning, and emotional regulation, such as the hippocampus. It also helps reduce the size of the amygdala, which is involved in stress and fear responses, thereby lowering anxiety and stress levels. Meditation also helps lowers cortisol levels and activates the parasympathetic nervous system, which reduces the body's stress response. Additionally, meditation enhances connectivity between different regions of the brain, improving overall cognitive function, focus, and mental clarity.