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

The world's oldest man has died at 112. These were his 3 tips for living a long, happy life.

Tech Insider : Business
World's oldest man, Jon Tinniswood, with his certificate from Guinness World Records.
John Tinniswood and his Guinness World Records certificate for being the world's oldest man.

Guinness World Records

A nutrition researcher shares 5 habits he follows to eat healthy and build muscle during the holidays

Tech Insider : Business, Environment
A split image showing a headshot of Mimio founder and CEO Chris Rhodes smiling next to a stock image of a caramel apple pie
Chris Rhodes, a researcher and founder of a longevity supplement company, said he has treats like caramel apple pie over the holidays, and uses the extra calories to build muscle.

Courtesy of Chris Rhodes/Mimio/Andrea Osuna/Getty Images

I'm 27 and paid $156 for a buzzy health test, fearing I was unhealthy despite eating well and exercising. I was reassured, but it felt like a waste of money.

Tech Insider : Business
Woman collage with microscope of fat and blood cells.
 

Getty Images; Chelsea Jia Feng/BI

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