Blog
Muscle mass by age: how much you lose per decade and how to stop it
See how much muscle mass you lose per decade after 30 with charts by age and gender. Learn the science of sarcopenia and proven strategies to preserve muscle.
Best exercise after 40: a science-based guide by sport
Discover the best exercise after 40 backed by science. Sport-by-sport breakdown covering strength, cardio, flexibility, and how to slow biological aging.
CrossFit after 40: when high intensity ages you faster
CrossFit after 40 can build strength, VO2 max, and community, but only when intensity matches recovery, joints, HRV, and sleep. Learn how to dose it.
Exercise and joint health after 40: what helps, what hurts
Learn which exercises protect joints after 40, which habits raise osteoarthritis risk, and how strength, recovery, weight, and mobility support cartilage.
The complete exercise guide for longevity: what science recommends
Science-backed exercise plan for longevity: weekly cardio, strength, zone 2, VO2 max, mobility, recovery, and how to adapt training by decade.
Sarcopenic obesity: when you're losing muscle and gaining fat at the same time
Sarcopenic obesity affects 11% of adults over 60 and raises mortality risk by 83%. Learn why losing muscle while gaining fat accelerates aging and how to reverse it.
Rucking: the low-impact exercise for bone density, fat loss, and longevity
Rucking burns 2-3x more calories than walking, builds bone density, and boosts VO2 max. Complete beginner's guide with weight, distance, and safety tips.
Eccentric training and aging: why lowering weight matters after 40
Eccentric training emphasizes lowering under control. Learn how it supports strength, tendons, sarcopenia resistance and safe progress after 40.
Is cardio killing your gains? What science really says
The interference effect is real but overstated. Learn when cardio helps muscle growth, when it hurts, and why both matter for longevity after 40.