The Science of Loneliness

Why We Need Human Connection More Than Ever and How to Cultivate It

In an increasingly digital and fast-paced world, loneliness has become a silent epidemic. Despite being more connected than ever through technology, millions of people feel profoundly alone. And loneliness isn’t just a fleeting feeling—it has significant implications for our physical and mental health.

Research has shown that chronic loneliness can be as harmful as smoking 15 cigarettes a day, increasing the risk of heart disease, stroke and even dementia. It affects our immune system, our sleep and our overall well-being, but what is loneliness and why is human connection so vital to our survival and happiness?

The Hidden Costs of Isolation

Loneliness is more than just being alone—it’s the painful sense of disconnection from those around us. The Campaign to End Loneliness reported that nearly half (49.63%) of UK adults—around 25.99 million people—felt lonely at least occasionally in 2022. More worryingly, 3.83 million people experience chronic loneliness, feeling isolated 'often or always.’

Older adults are particularly vulnerable. A 2024 report by Age UK found that 7% of people aged 65 and over—around 940,000 individuals—often feel lonely. And around 270,000 older adults in England can go a full week without speaking to a friend or family member, highlighting the devastating effects of social isolation.

Men also face unique challenges in forming and maintaining close friendships. A 2024 report by the Centre for Social Justice found that 27% of men in the UK reported having no close friends. The loss of traditional social structures, work pressures and stigma around vulnerability have made it harder for men to build deep, supportive connections.

The COVID-19 pandemic intensified this crisis, and despite restrictions lifting, feelings of isolation remain high. The shift towards remote work has also played a role, reducing everyday social interactions and making it even more important to intentionally nurture relationships outside of work. The smallest gestures—a check-in message, a shared laugh or a simple conversation—can help bridge this gap and remind someone they are not alone.

Why We Need Connection More Than Ever