'Shark Tank' star Kevin O'Leary's next project is movie acting. He says he loves it when 'people say I can't do something.'

Tech Insider : Business, Crypto, Economy
Kevin O'Leary
Kevin O'Leary is a "Shark Tank" investor.

Roy Rochlin/Getty Images

Improving your posture is a hot longevity trend — and cheaper than a facelift

Tech Insider : Business, Style
Kim Kardashian and Khloe Kardashian taking selfies on a boat.
Correcting your posture through strengthening exercises is a growing beauty and antiaging trend.

Stefano Mazzola/GC Images

Would you pay $2,500 a year to scan your entire body for hidden diseases?

Tech Insider : Business
mri

Getty Images

I thought I had great cholesterol, but a trendy new blood test said the opposite — sending me down a mind-boggling rabbit hole

Tech Insider : Business, Style
picture of the author, next to her function health results showing 7 out of range tests
I tried Function Health, a trendy new $500 membership service that tests your blood and urine for a whole spectrum of issues.

Hilary Brueck, Function Health

A cardiologist overhauled his diet to boost his longevity. Here's the grocery store path he takes to stick to his meal plan and avoid bad foods.

Tech Insider : Business, Style
grocery cart filled with produce

igoriss/Getty Images

Stimulating your vagus nerve could help you live longer. A top scientist shares 3 easy things he does to activate his.

Tech Insider : Business
A composite image. On the left, a man wearing a blazer. On the right, a shower dripping from below.
Dr. Kevin Tracey has studied the vagus nerve and its link to inflammation for decades.

Matthew V. Libassi/ Getty Images

A longevity researcher who lived in the forest for 3 years says he shaved a decade off his biological age — and his family loved the lifestyle

Tech Insider : Business, Environment
david holding up kid by legs, playing by the campfire
David Furman studies how the immune system ages.

David Furman

About 10 years ago, David Furman realized something had to change.

I went inside biohacking tech bro Bryan Johnson's home. It's a bit different from what you saw on his new Netflix doc.

Tech Insider : Business, Technology
Bryan Johnson looking at his reflection in a window while shirtless.
Bryan Johnson.

Magdalena Wosinska

How Gordon Ramsay stays fit at 58, from his diet to the one exercise he can't live without

Tech Insider : Business
Celebrity chef Gordon Ramsay at an event wearing aviator sunglasses and a black T-shirt as he smiles with his mouth open.

Kym Illman/Getty Images

A 57-year-old doctor who wrote a book about getting fit after 40 shares how she works out to stay strong and mobile

Tech Insider : Business, Sports
A composite image. On the left a woman lifts a dumbell on her shoulders. On the right, Dr. Vonda Wright poses on a weights machine.
Dr. Vonda Wright believes lifestyle choices can significantly impact how well we age.

Getty Images/ Ashley Blencoe

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