Bien Logo

3 Science-Backed Ways to Strengthen Adult Friendships

Barbara Lee3 min read
Share:
3 Science-Backed Ways to Strengthen Adult Friendships — Lifestyle
In this article

Friendships matter—most of us agree on that. Yet, as adults juggling life, I often realize a whole week can pass without checking in on my friends. Adult friendships sometimes require work, but science says a few simple mindset changes can help these bonds stay strong for life.

Don’t expect instant harmony—building friendship takes time

As kids, friendships could spark over something as simple as both having red sandbox shovels or loving ponies. As adults, many expect immediate connection in friendships. While mutual liking or shared humor can be a great start, not feeling perfect harmony at first doesn’t mean a friendship won’t grow.

The truth is, most adult friendships develop slowly through small, repeated interactions. Psychology research shows that people who believe friendship requires effort and commitment stay more socially active and open than those who think friendships just "happen" or are "meant to be." This mindset helps us stick with relationships even when they’re still surface-level because it reminds us that real bonds take time.

Group of women friends enjoying lunch together

When you meet someone you enjoy, keep the connection alive with a simple message, suggest another meet-up, and let shared experiences build—a real friendship grows from these moments.

Plan your friendships—consistency counts

As adults, friendships often take a backseat to other pressing life demands. Yet, the quality and frequency of connection are key to lasting friendships. A 2023 comprehensive review found that satisfaction with friendships depends more on how often we meet or communicate than on how many friends we have overall.

So, treat friendships like something to schedule into your life. It could be a weekly coffee, a monthly dinner, or regular video calls with friends far away.

Make a list of people you want to connect with more often, and suggest specific times or regular plans.

This helps you reach out to friends regularly, not just occasionally.

Two women enjoying winter sunshine while running on the beach

Adapt to each other’s lives—flexibility builds friendship

As adults, everyone has their own priorities: one friend might have young kids, another could be overwhelmed at work, and a third might be starting a new hobby. Keeping friendships often means compromise and flexibility—respecting and honoring each other’s realities.

This usually means small everyday gestures like adjusting timing or meeting somewhere convenient for both. These little mutual accommodations say: I value this friendship and am willing to invest energy in it.

If a friend struggles to find time, suggest activities that fit their lifestyle—even offering childcare during a get-together.

Adult friendships don’t always form easily or naturally like back in school. Instead, they need intention, planning, and mutual flexibility—three things science supports.

When you accept that friendship isn’t just something that happens but something you build, plan regular meet-ups, and flexibly adapt to your friends’ lives, you create not just more but deeper, lasting connections that can carry you through your whole adult life.

Related reads