Excellent piece, Kelly. Though hard to pick a favorite part of the article, I'll pick this:

"It’s not even about having a ton of friends. It’s about your mindset towards other people. “What’s critical is allowing yourself to love others, and being able to take people in,” says Valliant. “Worry less about cholesterol and more about gratitude and forgiveness.”

Few trusted friends can produce massive meaningful relationships leading to far more contentment than a boatload of acquaintances.