A top Marine shares his secrets to keeping fit at 50

Tech Insider : Business
The US Marine Corps' top enlisted leader, Sergeant Major Carlos Ruiz, plays frisbee with Marines,
The US Marine Corps' top enlisted leader, Sgt. Maj. of the Marine Corps Carlos Ruiz, plays frisbee with troops,

GySgt Jordan E. Gilbert/US Marine Corps

Everything a sports dietitian — and busy mom of 2 — eats to build muscle and fuel for workouts

Tech Insider : Business, Sports
Morgan Walker
Morgan Walker, a sports dietitian, works out early and preps most of her meals in advance.

Morgan Walker

How a sports nutritionist who's 'passionate about bread' sneaks protein and fiber into his diet

Tech Insider : Business, Sports
Dr. Samuel Impey
Dr. Samuel Impey eats carbs like sourdough bread and pasta to fuel for long runs and speed training.

Kate Swerdlow Photography

I hate cardio and networking, but was surprised to enjoy a fitness meet-up for VCs and founders. I learned 3 helpful lessons.

Tech Insider : Business, Economy, Sports
A group of people fist bump in workout gear.
Fitness networking events are becoming a popular alternative to boozy business dinners.

Andre Humphrey-Modeste - Modeste Studio

How the world's simplest sport became so tech-obsessed

Tech Insider : Business, Sports, Technology
Gold running sneakers on a golden podium

Getty Images; Alyssa Powell/BI

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

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