Childhood Loneliness Linked to Cognitive Decline in Adulthood
Introduction: Childhood Loneliness as a Public Health Concern
Childhood loneliness—defined as the subjective feeling of social isolation, disconnection, or lack of companionship during early development—has been increasingly recognized as a risk factor with long-term implications for mental and cognitive health. While loneliness is often seen as an emotional issue of childhood, research now indicates that its effects can extend well into adulthood, influencing brain function and increasing vulnerability to cognitive decline. Understanding this connection is critical for developing early interventions that safeguard cognitive aging and promote lifelong mental well-being.