I moved home after a breakup and felt like a failure. Joining a gym helped me find my partner and make close friends.

Tech Insider : Business
A woman sitting outside
Katie McDonald, 29, moved back home after a breakup when she was 22. She joined a luxury gym with the money she saved.

Katie McDonald

I took a VO2 max test while sprinting on a treadmill. It taught me how fast I should run to burn fat and build muscle.

Tech Insider : Business, Technology
The author is running on a treadmill
I wore a mask to track how hard my heart was working during strenuous exercise.

Corrie Aune for BI

I got 2 body composition analyses, 6 months apart. I lost fat and learned I need to work out smarter to build muscle.

Tech Insider : Business, Sports, Technology
A woman doing a body composition analysis; salmon and veggies
My second body composition analysis taught me I should eat more protein and change my strength training regimen.

Julia Pugachevsky

A sports dietitian shares 6 meals and snacks she eats for stronger muscles and more energy

Tech Insider : Business, Sports
Roxana Ehsani
Roxana Ehsani, a sports dietitian, eats lots of protein and fiber to build muscle and boost her energy levels.

Roxana Ehsani

Sneakerheads and footwear insiders tell us why Nike is on the right track

Tech Insider : Business, Sports, Style
Lamar Stewart with his shoe collection
Lamar Stewart has over 100 pairs of shoes in his collection.

Lamar Stewart

The first woman to complete the Boston Marathon is now 78 and runs most days. She shared 3 tips for getting fit at any age.

Tech Insider : Business
Composite image of a woman running, wearing a vest that reads,
In 1967, Kathrine Switzer became the first woman to officially run the Boston Marathon. A race official tried to stop her (right).

Kathrine Switzer/GALE Partners

Why extreme fitness is booming: 'I got kind of addicted'

Tech Insider : Economy, Business
Illustration of people running.

Dan Page for BI

At Pitch and Run, VC Nihal Mehta is creating a community for founders and investors to connect over exercise.

Tech Insider : Business, Sports
A joined photo of a group of runners on the left, and VC Nihal Mehta on the right
 

Nihal Mehta, Eniac Ventures

I used to hate running but loved weight-lifting. Here's how I finally made jogging a habit I enjoy and embraced hybrid training.

Tech Insider
A composite image of Rachel flexing in the gym, and on a run.
After years of regular strength training and avoiding running, Rachel Hosie is finally getting into jogging.

Rachel Hosie

I'm training for my first marathon and scared of 'hitting the wall.' An expert told me how to avoid burnout.

Tech Insider
A young woman running against a white brick wall

Mikel Taboada/Getty Images

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