Active Ageing
Biological Age vs. Chronological Age: Reversing the Metabolic Slowdown
Your birth certificate tells one story, but your performance tells another. Discover how to lower your biological age through functional movement.
amersham
Training
Boardroom Grit: The Benefits of CrossFit for Professionals
The box is the training ground for life. Discover how the grit you build at CrossFit Chiltern makes you a more effective leader and professional.
Nutrition
Alcohol's Effect on Muscle Growth: The CrossFit Athlete's Truth
It's not just about the empty calories. Jeremy Reilly shares the physiological handbrake alcohol puts on recovery and his personal rules for maintaining performance.
Lifestyle
Press the Reset Button on Your Day
Had a hard day at the office? Discover why pressing the "reset button" with a high-intensity workout is the fastest way to clear your head.
Training
The Intensity Dividend: Why Relative Intensity is the Ultimate Preventative
Intensity is the variable most associated with results. Discover why hitting your "relative" high intensity is the best health insurance policy you can buy.
Lifestyle
The Bone Density Bank
Your bones are alive, and they respond to stress. Discover why heavy squats and deadlifts are the ultimate protection for your skeleton.
Training
Mastering the Kip Swing Part 5: The Huge Lever
Most people fail the first rep because they start poorly. Our coaches will show you how to jump from behind the bar into a massive lever.
Training
Friday Night Lights: The Heart of CrossFit Chiltern 2026
Tomorrow the music goes up and we find out what we’re truly made of. Join me for the ultimate 2026 community experience in Amersham.
Lifestyle
The Recovery Engine
The work you do after you leave the box is what drives your results. Discover why your recovery dictates your performance and how to avoid the "under-recovery" injury trap.
Training
Mastering the Kip Swing Part 4: Finding Your Open Rhythm
Timing is everything. Learn the snappy "Beat Swing" as we show you how to create weightlessness and move through gymnastics workouts with ease.
Training
Grip Strength as a Life Insurance Policy
Your hand strength tells a deeper story about your biological age. Discover why grip strength outranks traditional health markers for your long-term survival.
Training
Your 2026 Fitness MOT: Why the Global Leaderboard Matters
The 2026 Open is our annual "Fitness MOT." Discover why putting your name on the global leaderboard is the ultimate act of commitment to your future self.