How does someone feel lonely while being deeply loved? How does someone feel unsupported while living in a joint family? Despite partners, families and friends, many adults feel nobody truly knows them. As loneliness draws growing global concern, this paradox deserves attention. While technology, urbanisation and changing social structures all play a role, growing evidence suggests that its roots may begin much earlier — in childhood.The World Health Organization estimates that one in six people worldwide experience loneliness, with significant consequences for health and well-being. The report highlighted that loneliness is linked to around 100 deaths every hour globally.One of the largest studies ever conducted on loneliness, led by Julianne Holt-Lunstad and colleagues, and published in Perspectives on Psychological Science in 2015, analysed data from more than 3.4 million participants and found that loneliness was associated with a 26% higher risk of premature mortality. Loneliness has also been linked to heart disease, depression, weakened immunity, disturbed sleep and cognitive decline. These findings tell us why loneliness matters. But they do not explain why two people living in similar circumstances experience relationships so differently.The India storyIn India, we often assume that close-knit families protect against loneliness. However, many adults still feel emotionally isolated despite living with family and appearing socially connected. Young adults are moving away for education and work, traditional neighbourhood networks are weakening, and older adults are increasingly living alone. These changes undoubtedly contribute to loneliness. But they do not explain why many people feel emotionally alone even while surrounded by loved ones. Emotional loneliness often starts within families when people never feel safe enough to reveal who they truly are.While researching Adverse Childhood Experiences (ACEs) and their long-term consequences, one observation repeatedly stood out. Many adults described a quiet, persistent loneliness that had little to do with the number of people in their lives. Childhood adversity is often imagined as dramatic — abuse, violence. Yet much of it leaves no visible mark.