Does Sauna Count as Cardio? What the Evidence Shows
Sauna heat can raise your heart rate, but it does not count as aerobic exercise. See what short-term trials and long-term studies show about sauna and heart health.
Chris Pruitt
Chris Pruitt is a certified ASFA personal trainer and the founder of WorkoutHealthy, a fitness equipment retailer serving customers since 2007. He has more than 16 years in the fitness business, and he writes and fact checks everything published on Insider.
Vanna White’s Fitness Routine: What She’s Actually Said
A viral Facebook post credited Vanna White's fitness at 68 to cycling, pull-ups, and weights. Her own interviews back up the routine, though not the reasons the post gave for it.
Strength Training and Brain Health: What Studies Show
Compare the older-women lifting trial with newer cognitive reviews, a nonrandomized imaging study and long-term mortality research, without a younger-brain promise.
Arnold Schwarzenegger’s Famous Rep Quote: Fact, Myth, and the Real Line to Watch
Arnold Schwarzenegger's famous quote on a set's final reps is everywhere. Here is what we could verify, and the real difference between muscle burn and injury pain.
Edith Connor: The Guinness Record for Oldest Female Bodybuilder
Edith Connor became Guinness World Records' oldest competitive female bodybuilder in her seventies. Here is what a decade-long, later-in-life build actually requires.
DonnaJean Wilde’s Push-Up World Record: The Pacing Math Behind It
DonnaJean Wilde set a push-up world record at 59. Here is the real pacing strategy behind her 1,575 push-ups in one hour, verified by Guinness World Records.
Misty Copeland’s Hip Replacement Recovery: What It Actually Takes
Misty Copeland shared her hip replacement recovery online. Here is what her walker footage actually shows about how joint replacement rehab works, and what it does not mean.
Benefits of Having a Workout Partner: Five That Depend on Fit
A workout partner may help with accountability, encouragement, and routine. Use this evidence-based guide and two-minute fit check to find an arrangement that works.
How Many Calories Does Jump Rope Burn? Weight and Time Chart
Jump rope calorie estimates for 10, 30, and 60 active minutes by body weight. See the Compendium formula and why workout breaks change the total.
Why Am I Losing Weight and Muscle Mass? What to Check
Unplanned weight loss and changes in strength need assessment. Understand the limits of home muscle readings and use a practical record to prepare for a medical visit.