The Science of Friendship

Friendships are so important, they can literally impact life and death…

Romance gets a lot of attention but, according to a growing body of research, friendships are critical to our health and well being. A review of 38 studies found that adult friendships, especially high-quality ones that provide social support and companionship, significantly predict wellness and can protect against mental health issues like anxiety and depression. Those benefits persist across the life span.

Friendships protect to some degree by altering the way we respond to stress. Our blood pressure can lower when we talk to a supportive friend. When we have a friend by our side while completing a tough task, we have less heart rate reactivity than those working alone. Friendships can also change our perspective. In one study, people even judged a hill to be less steep when accompanied by a friend.

Fortunately, research also suggests that friendships can be forged and maintained at any age. Even minimal social interactions can be powerful. So-called “weak ties” -- interactions we have with casual acquaintances -- can boost our health and sustain positivity.  

Isolation during the pandemic proved hard on nearly everyone, but it did focus scientific attention on how important human connection is across all ages and all spheres of life. 

Do you have friendships that nourish you, and do you actively make an effort to keep them going? Let us know if you’ve found a way to start new friendships as an adult. To join the conversation, click on "comments" below.

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