The report warned of the considerable adverse effects of loneliness and social isolation—comparing it to other leading risk factors for premature death such as smoking, obesity, elevated blood pressure, and high cholesterol.
Loneliness and social isolation can be harmful
For example, my colleagues and I have previously shown that social isolation is associated with a 48% increase in odds for premature death, and that lonely people have 71% higher odds of reporting fair or poor health.
Other researchers have also documented the havoc that loneliness wreaks on individuals, showing that lonely and isolated people have poorer immune function, experience higher levels of inflammation, and are at greater risk for heart disease, cancer, and diabetes.
Perhaps just as importantly, Harvard research from the longest-running cohort study ever conducted suggests that warm social relationships are the most important predictor of happiness across the life course.
In other words, people who are disconnected lead sicker, sadder, and shorter lives.
Public health guidelines
In response to this epidemic of loneliness, my team at the Canadian Alliance for Social Connection and Health has engaged experts from across Canada and globally to develop the world’s first public health guidelines for social connection.
Similar to the nutrition, exercise, and alcohol use guidelines promoted by many national governments, social connection guidelines have the potential to improve our health and happiness by helping us all prioritize social connections in our daily lives.
They can also raise awareness among health care providers and policymakers to ensure these experts are taking actions consistent with the latest evidence highlighting the importance of social health.
Promising guidelines for better social health
While everybody’s vulnerability to loneliness and social isolation differs, we all need social connection. Yet, people generally underestimate the benefits of connecting with others and overestimate the costs, which include the emotional labor and mental energy needed to manage relationships and your self-presentation.
Regardless of levels of introversion or extroversion, insufficient social connection is associated with poorer well-being.
This is because social connection is a biological imperative. We evolved in close-knit communities. For ancient humans, social exclusion was a death sentence. Loneliness is our body’s way of keeping us connected, but sometimes we get trapped by it.
Public health guidelines can help raise awareness of the importance of social connection and provide us with a roadmap for better social health. But what should these guidelines look like?
This is exactly what my team has set out to understand as part of a multi-phased, mixed-method study funded by and conducted in partnership with the Canadian government. So far, we have identified a few promising approaches that each of us can act on right now:
Make sure to have three to five close friendships to call on when you’re in need. Research has shown that individuals who have at least three to five close friends experience the lowest levels of loneliness, anxiety, depression, and a range of other adverse health outcomes. Having too many friends can sacrifice quality for quantity. Having too few can leave you alone in a time of need.
Get one to three hours of social interaction per day. That’s between seven and 21 hours of social time per week—far more than the average of 34 minutes of socializing most of us get each day. This value aligns with the approximate 24 hours per week that tribal and pastoral societies have historically enjoyed. While this may seem like a daunting jump in social hours for some, social interactions can include a wide variety of activities: chit-chat with your barista, a phone call to a friend, conversation over dinner.
Prioritize spending time with those closest to you. We’ve found that individuals need to socialize with both “strong” and “weak” ties, but that the balance of your social energy should be spent on close friends and family with whom you have warm relationships. This is because close relationships fulfill our most important relational needs: to feel loved, acknowledged, and validated. Building these strong ties takes time.
Diversity in your social network is important, too. So-called “weak ties”—those you don’t have a close relationship with—also matter. In fact, studies have shown that talking to neighbors can build a sense of community; making friends at work can reduce job stress; and even talking to strangers can create a sense of safety and provide a meaningful source of connection. Different relationships provide different types of support.
Recognize the risks of living alone. People who live alone are at increased risk of loneliness, and studies have shown that living alone, particularly for men, is hazardous to your health. That means that if you live alone, prioritizing social relationships may be especially important to you.
Reach out to old friends and don’t be afraid to make new ones. Keeping and maintaining relationships can be hard—especially in today’s fast-paced world. Renewing old friendships can be an easy way to keep your social calendar full, but keeping a healthy level of engagement with new people will make sure your friendship well doesn’t run dry.
Don’t forget the importance of solitude. Just as time with others is important, it’s also important to have time alone. It is perfectly good, and even healthy, to spend time alone. We call this “solitude.” In fact, for some, time with others may even exacerbate feelings of loneliness. Time alone provides an opportunity to restore your social reserves and meet your own personal needs.
Following these and other strategies can improve your health and well-being. However, addressing loneliness, like many of the big problems we face today, will require a whole-of-society response. Public health guidelines for social connection can provide the foundation for such an approach.