Walking and the Gut Microbiome: What Studies Show
Walking may influence the gut microbiome, but the human evidence is mixed. See what trials found and use a practical walking-and-fiber plan.
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.
Jo Whiley on Training With Arthritis
Jo Whiley has described adapting exercise around arthritis. Learn a joint-friendly strength template and a practical 24-hour response check.
Sarah Michelle Gellar’s Streaming Workout Strategy
Sarah Michelle Gellar uses studio, outdoor, and streaming workouts. Her adaptable approach becomes a practical four-lane plan for home and travel.
Liver King’s Carnivore Pivot: What It Really Means
Liver King backed away from strict carnivore claims. Here is what the pivot does and does not mean, plus a four-part filter for extreme diet advice.
Box Breathing for Stress: What It Does, What It Doesn’t, and How to Start
Box breathing is a simple four-part practice with promising stress research. Learn the evidence, a gentle starting method, and when to stop.
Dead Hangs After Desk Work: Real Benefits, Limits, and a Safer Progression
Dead hangs can train grip and overhead tolerance, but they are not a spinal reset. Learn a conservative progression and the symptoms that mean stop.
Do Rest Days Build Muscle? What Recovery Science Actually Says
Rest days support muscle growth by protecting recovery and future training quality. Use this evidence-based traffic light to decide when to train, scale, or rest.
Cocoa Flavanols and Blood Flow: What the Trials Actually Show
Cocoa flavanols can modestly improve vascular markers in short-term trials, but ordinary chocolate is not a standardized dose or cardiovascular treatment.
Mark Wahlberg’s Breakfast Routine Changed. Here Are the 5 Myths to Drop.
Mark Wahlberg has publicly described both pre-workout breakfast and later fasting routines. Here is what the evidence says about breakfast and fasted lifting.
Merle Dandridge Checked a Lifelong Goal Off Her List at the NYC Marathon
Merle Dandridge spends most of her working nights under stage lights or in front of a camera. This fall she chased a goal that had nothing to do with acting at all. Dandridge ran the 2025 TCS New York City…