They were 11 girls growing up together in Ames, Iowa. Now they are 10 women in their mid-40s, spread all over the country. And they remain the closest of friends.
Whenever "the Ames girls" get together, it's as if they've stepped into a time machine. They feel like they are every age they ever were, because they see each other through thousands of shared memories.
As 12-year-olds, they'd sit in a circle, combing each other's hair. As 17-year-olds, they'd go to parties together deep in the cornfields outside Ames. As 30-year-olds, they'd commiserate over the challenges of marriage and motherhood.
Like the Ames girls, millions of us have nurtured decades-long friendships, and we don't always stop to recognize the power of these bonds. As we age, friendships can be crucial to our health and even our sanity. In fact, a host of scientific studies show that having a close group of friends helps people sleep better, improve their immune systems, stave off dementia and live longer.
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