I've been a Pilates instructor for 13 years. Here are 5 common mistakes I see clients make during their first few classes.

Tech Insider : Business
Daniela does a lunge on a Pilates reformer in an empty studio.
I've been teaching Pilates classes for 13 years.

Daniela Borodin

Tell us your pressing health questions — we'll get answers from experts

Tech Insider : Business
wellness advice
wellness advice

Klaus Vedfelt/Getty Images

A champion ping pong player who avoided sports most of her life says it's never too late to start something new

Tech Insider : Business, Sports, Style
Carol Klenfner in blue shirt and black pants playing ping pong.
Carol Klenfner has found a renewed sense of competition after picking up ping pong later in life.

Mark Adam Miller / Business Insider

Retired Navy SEAL Jocko Willink shares 5 exercises you can do anywhere to build muscle, burn fat, and live longer

Tech Insider : Business
Jocko Willink in black dress pants and a collared shirt.
Entrepreneur Jocko Willink starts his day at 4:30 a.m., a habit he picked up in the Navy SEALs.

Courtesy of Jocko Willink

My daughter told me I should start going to the gym. At 79, I'm in the best shape of my life.

Tech Insider : Business, Sports
A split image of an overweight senior and the same, much fitter woman, 70 pounds lighter.
Joan MacDonald before and after her transformation at the gym.

Courtesy of Michelle MacDonald

Martha Stewart, 84, still works out every weekday — and says her routine hasn't changed much in decades

Tech Insider : Business, Sports
Martha Stewart.
Martha Stewart.

Variety/Variety via Getty Images

To build muscle, you need a 'de-load' week. Here's how a powerlifting doctor strategizes rest for maximum gains.

Tech Insider : Business
Dr. Shernan Holtan jumping rope at a CrossFit gym
Dr. Shernan Holtan does powerlifting and CrossFit to stay healthy. She said taking a break from exercise with regular "deload weeks" helps to build muscle and strength while preventing injury.

Courtesy of Roswell Park Comprehensive Cancer Center

A powerlifting doctor shares her 2 favorite exercises to build muscle, boost longevity, and speed up recovery

Tech Insider : Business
A professional headshot of doctor Shernan Holtan: she has long blond hair and is wearing a white coat that reads
Dr. Shernan Holtan has been lifting weights for over a decade, and said it can boost short-term health and help stave off disease over time.

Courtesy of Roswell Park

A 79-year-old woman shares her 3-step longevity routine — including 11 workouts a week

Tech Insider : Business, Sports
An older woman in a floral print blouse and bright yellow sweater smiling in front of an arrangement of balloons and flowers.
79-year-old grandmother Anne Thibodeaux works out 11 times a week and loves gardening, going to museums, and social groups like her book club.

Courtesy of Anne Thibodeaux

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

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