Insider Today: America’s billionaire hub

Plasma exchange therapy is the latest wellness trend among CEOs, aging athletes, and longevity seekers. Typically used for patients with chronic conditions, the procedure involves replacing plasma with another fluid to remove toxins.

Former NFL star Troy Aikman, who has received the treatment, likened it to “a human oil change” — but there’s limited evidence that it can actually boost longevity or benefit otherwise healthy people.

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More of this week’s top reads:

• RTO mandates are on the rise. Here’s what to wear to work this fall.
• How Hilary Swank spends her 5 to 9 — from meditating to eating every hour and a half.
• A family of six visited Disney and Universal. The latter was better in some huge ways.
• House-sitting lets this couple travel the world without housing costs.
• How a “micro-retirement” reversed one woman’s burnout.
• A man who started doing CrossFit in his 80s now does 100 push-ups a day.
• What people with wildly different incomes discuss in therapy.
• Retired sisters share what it’s like to live on cruise ships full-time.
• Victoria Secret could be the next brand Gen Z brings back from the dead.
• Hotel companies are getting into the luxury cruise game.
• Bartenders share the drinks you should order more often.

The Insider Today team: Dan DeFrancesco, deputy editor and anchor, in New York City. Jordan Parker Erb, editor, in New York. Lisa Ryan, executive editor, in New York. Amanda Yen, fellow, in New York. Grace Lett, editor, in Chicago.