Blog
Evidence on muscle, bone and functional health after 40 — what the research shows, and what to do with it.
Strength Training for Women
Yes, you can build muscle after menopause — but the process is different. Answers to the real questions: load, frequency, protein, menopause symptoms, and how to track progress.
Bone Health
Walking, swimming, and Pilates aren't enough to improve bone density. Here's what the LIFTMOR trial and 75-RCT meta-analysis show actually works — and what your doctor probably didn't tell you.
Functional Longevity
Chronological age tells you almost nothing about how your body is aging. Functional age — derived from strength, power, balance, endurance, and mobility — actually predicts outcomes.
Muscle Health
Prevention is far more effective than reversal. Here's the four-pillar evidence-based protocol for protecting muscle health after 40 — resistance training, protein, sleep, and measurement.
Longevity Medicine
Attia's framework is the best publicly available longevity protocol. Here are the four gaps it doesn't fully close: power training, female-specific protocols, measurement access, and the JAMA muscle strength finding.
Strength Training for Women
The bulk myth stops more women from the most important exercise for their health than almost any other belief. Here's what the hormonal science and clinical data actually show.
Muscle Health
Sarcopenia — progressive muscle loss — starts in your 40s, not your 70s. Here's what the clinical evidence shows about causes, symptoms, and the evidence-based protocol to stop it.
Functional Longevity
Functional fitness has a precise clinical meaning — and it's different from what gym culture calls it. Here's what it measures, why it predicts aging outcomes, and how to assess it.
Functional Longevity
Strength, power, endurance, balance, and mobility — the five clinical factors that predict functional independence. What the Lancet and BJSM research shows, and how to measure yours.
Longevity Training Protocol
A clinical breakdown of Peter Attia's four-pillar exercise protocol — stability, strength, zone 2, zone 5 — the centenarian decathlon framework, and the assessment gap most people miss.
Longevity Training Protocol
The clinical research on longevity exercise has converged on clear priorities. Here's the evidence hierarchy: resistance training, zone 2, power training, and balance — and why all four are necessary.
Bone Health
DEXA scan results explained — T-score, Z-score, what they miss, and the evidence-based action plan your doctor probably did not give you. Includes the LIFTMOR trial data.
Longevity Biomarkers
A DEXA scan shows lean mass but not functional muscle quality, power output, or movement capability. Here's what DEXA misses and what a complete functional assessment adds.
Longevity Training Protocol
Zone 2 training is one of the best longevity interventions available — but it's not sufficient on its own. Here's what the JAMA data shows about muscle strength as an independent mortality predictor.
Training for Longevity
Peter Attia's Centenarian Decathlon reframes exercise as training for the activities you want to do in your final decade. Here's the science behind training for functional longevity.
Longevity Biomarkers
Grip strength is one of the strongest predictors of all-cause mortality. Here's what the Lancet PURE study and JAMA research reveal about this overlooked biomarker.
Longevity Biomarkers
You're tracking VO₂ max, glucose, and sleep — but ignoring the biomarker most predictive of functional independence. Here's why muscle health belongs in every longevity protocol.
Exercise & Menopause
Not all movement is created equal after 40. Here's what the evidence says about which exercise modalities preserve bone, muscle, and functional capacity during perimenopause.
Bone Health & Perimenopause
Bone density can decline sharply during the menopausal transition. Here's what the LIFTMOR trial found about high-intensity resistance training and bone preservation.
Muscle Health & Perimenopause
Feeling weaker or losing muscle tone after 40? It's not a fitness failure — it's a measurement gap. Here's the clinical data on functional muscle health in perimenopausal women.
At-Home Fitness Assessment
A clinically validated at-home test that benchmarks your lower body strength and predicts long-term functional independence.
Perimenopause & Exercise
Estrogen decline reduces satellite cell function and type II muscle fiber capacity. Here's what perimenopausal women should do instead.