Association between activities of daily living and the introduction of home-visit medical care in patients with stroke discharged from a convalescent rehabilitation ward.

The human nervous system evolved within environments characterized by continuous exposure to diverse and biologically meaningful sensory experiences. Throughout most of human evolutionary history, daily survival depended upon locomotion, manual activity, environmental exploration, physical effort, social interaction, tactile contact, sexual behavior, thermal variability, and constant adaptation to changing physical surroundings. Consequently, the brain developed not as an isolated computational organ but as a predictive system continuously shaped by dynamic interactions between the body and the environment. Contemporary neuroscience increasingly recognizes that cognition, emotion, and self-awareness emerge from ongoing bidirectional communication between the brain and the body. Within this framework, interoception, the sensing, integration, and interpretation of internal bodily signals, plays a central role in emotional regulation, autonomic control, adaptive behavior, and subjective experience [-]. In parallel, predictive coding, active inference, and free energy models propose that the brain continuously generates predictions about bodily states and updates these predictions through incoming sensory information [-]. Rather than passively receiving sensory inputs, the nervous system actively constructs models of physiological reality and continuously refines them through interaction with the body and the external environment.