I got a blow-out in Davos for nearly $170. It was worth it to start the week off with peak confidence.

Tech Insider : Business
Kim Last at the Kopps Coiffure salon in Davos, Switzerland.
Kim Last starts Davos with a nearly $170 blowout, and she feels it's worth every penny for the hair, the coffee, and the networking opportunities.

Thomas Oswald for BI

I'm a trauma surgeon turned longevity CEO. I get up at 5 a.m., avoid snacks, and keep my phone out of my bedroom.

Tech Insider : Business
Dr. Shah
Dr. Darshan Shah said doing the small things consistently had the biggest impact on his personal health journey.

Madeline Tolle for BI

This as-told-to essay is based on a conversation with Dr. Darshan Shah, the 53-year-old founder and CEO of longevity clinic Next Health, who's based in Malibu, California. It's been edited for length and clarity.

A fallen billionaire's bulletproof Mercedes sold at bankruptcy auction for $63,000. Here's how it went down.

Tech Insider : Economy, Business
Mercedes Benz

Joe Buglewicz for BI

I'm still working in the medical field at 83. My husband doesn't need me at home staring at him all day — I want to be productive.

Tech Insider : Economy, Business, Travel
Barbara Fod
Barbara Ford, 83, works in the medical field.

Laura Thompson for BI

How America's high schools are teaching capitalism

Tech Insider : Economy, Business, Politics
Arthur Johnson
Arthur Johnson, a North Carolina high school teacher, attended an institute on democracy and capitalism amid Americans' declining views on capitalism over time.

Jesse Barber for BI

Pop quiz: The airline industry is an example of what market structure?

The garage where Jamie Siminoff founded Ring burned in the LA fires. Now he wants the doorbell cameras to help fight wildfires.

Tech Insider : Business
Jamie Siminoff
Jamie Siminoff hopes teaming up with Watch Duty will help fight wildfires like the one that tore through the Pacific Palisades and burned down the garage that he founded Ring out of in 2012.

Shelby Moore for BI

I'm 91 and the oldest working female comedian. Here's what I learned from starting a new career late in life.

Tech Insider : Economy, Business
D'yan Forest ate her home
D'yan Forest is the Guinness World Record holder for oldest working female comedian.

Lanna Apisukh for BI

I'm an 81-year-old home builder. People are shocked I'm still framing houses at my age, but I love what I do.

Tech Insider : Economy, Business, Travel
Jim Franck
Jim Franck, 81, is a homebuilder in Oregon who has no plans to stop working, despite being financially comfortable.

Brooke Herbert for BI

I'm an 83-year-old yoga instructor. I'm not your typical grandma — I still work to feel fulfilled and supplement my Social Security.

Tech Insider : Economy, Business, Travel
Barbara Thompson
Barbara Brown, 83, teaches chair yoga classes at nursing homes.

Laura Thompson for BI

I'm an ex-Clinton strategist turned CEO. I don't micromanage and love Chinese food and brain games — here's a day in my life.

Tech Insider : Business
Mark Penn

Valerie Plesch for BI

This as-told-to essay is based on a conversation with Mark Penn, the 71-year-old CEO and Chairman of Stagwell, based in Miami Beach. It's been edited for length and clarity.

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