Benjamin Franklin’s Morning Air Bath: What He Wrote and What Holds Up
In a 1768 letter, Benjamin Franklin described sitting undressed in cool morning air as a "tonic bath." Here is what he actually wrote and what cold exposure research says today.
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.
Joe Rogan vs. Mike Israetel on Training, Diet, and TRT
Compare source context, research outcomes and an editorial scheduling example.
What Is Sports Biomechanics? A Worked Movement Analysis
What is sports biomechanics? See how motion capture, force plates, and EMG answer different questions in a jump landing, and what the data cannot predict.
715 Pounds, Not a First: Scot Mendelson’s 2005 Raw Bench Press Record
Scot Mendelson raw bench pressed 715 pounds at the 2005 Atlantis New England Bench Press, a world record at the time. We verified the lift through OpenPowerlifting and Wikipedia, traced who actually crossed 700 pounds raw first, and checked which federation, if any, sanctioned the meet.
Slow Breathing and HRV: What Changes, and What Does Not
Read slow-breathing studies and wearable HRV scores in context.
Caffeine Naps: What Three Studies Actually Compared
Caffeine naps may help short-term alertness, but the studies compare different people and conditions. See what the driving and night-shift trials can and cannot prove.
Dave Bautista Ditched Wrestling Bulk for a Leaner, More Mobile Body
Dave Bautista is 57 years old and still working steadily. He recently wrapped Wake Up Dead Man, the next film in the Knives Out series. He continues to take on physical roles that once seemed built for a much younger,…
Chad Wesley Smith’s Strength Block: Source and Example
Read a source summary, a planning example and a check on percentage calculations.
Thumb Pain From Scrolling: Changes, Evidence and Getting Help
Thumb pain from scrolling is not a diagnosis. Find source-based care guidance, practical task changes and a record to discuss with a clinician.
Bindi Irwin Spent a Decade Being Told Her Pain Was Normal. It Wasn’t.
Bindi Irwin spent close to ten years trying to find out why her body hurt so much. Doctors often told her it was normal. It was not normal. In 2023, she finally learned she had endometriosis. It is a condition…