A high-protein diet cut gut microbial richness — and training did not restore it
In mice fed 60% of energy as protein, gut microbial richness fell, and eight weeks of resistance training did not bring the community back. What training changed was performance.
Blood sugar benefits peaked at 704 MET-minutes of exercise per week
A dose-response meta-analysis in older adults with type 2 diabetes. HbA1c reduction maxed out near 704 MET-min/week, and pushing past it did not keep the curve climbing.
A smart ring is great at sleep trends and blind to your sets
The Oura Ring 5 is 40% smaller than the gen 4 and now runs 8–9 days per charge. The limit that remains is not size — it is that passive tracking cannot see a workout.
COPD is a muscle problem too — and lifting was feasible even with severe obstruction
Chronic obstructive pulmonary disease damages skeletal muscle, not just lungs. Resistance exercise improved lower-limb function and stayed feasible under significant dyspnoea.
After 50, the split squat beats the barbell back squat
Rule one for building muscle past 50 is avoiding injury. Swapping bilateral barbell squats for unilateral split squats keeps the stimulus and drops the spinal cost.
Combining cardio with lifting cut inflammation more than either alone
A network meta-analysis of 28 randomised trials in metabolic syndrome. Combined training ranked first for both CRP and TNF-α; resistance alone only led on IL-6.
An athlete's enlarged heart and a diseased one differ at the RNA level
Cardiac hypertrophy is not one phenomenon. Specific lncRNAs distinguish exercise-induced from pathological growth — and some encode an antihypertrophic memory.
Cat-cow is timed, not counted — 2 to 3 seconds each direction
Cat-cow is not a rep-based exercise. Spend 2–3 seconds per direction and move the shoulder blades along with the spine, or the end range never opens.
Biological aging sped up during chemotherapy — and only the lifting group stopped the acceleration
In a randomised trial of colon cancer patients, GrimAge acceleration rose 0.45 SD over six months in usual care alone. The resistance training group showed no significant acceleration.
Resistance training added 68.5m of walking but moved no inflammation marker
Cardio and lifting do not substitute for each other. Across 11 pooled meta-analyses, the outcomes each mode improved barely overlapped.
Water training cut fall risk as well as land training did
A meta-analysis of 31 trials and 1,702 participants found large improvements in balance and strength from aquatic training. Head to head against land-based training, the difference was not significant.
Adding blood flow restriction to bodyweight plyos raised rectus femoris recruitment
Eight weeks of bodyweight plyometrics with and without cuffs. Knee torque rose in both groups; the difference showed up at the hip and in the rectus femoris.
Men need 38g of fibre a day and cabbage covers a fifth of it
Cabbage carries about 5g of fibre per cup — roughly 1g per 10 calories — so 1.5 cups covers 20% of the daily target for around 75 calories.
Pick an electrolyte powder by sodium per hour, not by brand
Sodium per serving ranges from 300mg to 1,000mg across popular electrolyte powders — a threefold spread hidden behind the same word on the label.
Mood benefit peaked at 801 MET-minutes a week and stopped climbing
The relationship between exercise volume and depressive symptoms is not a straight line. Across 31 randomised trials and 2,247 people, the curve flattened at a moderate dose.
Training raised peak VO2 by 2.3 in 205 patients with a thickened heart
Hypertrophic cardiomyopathy long meant scaling exercise back. Pooled data now shows gains in capacity, with adding resistance work no worse than endurance alone.
Insomnia, sleep apnea and circadian disruption are not one sleep problem
A review that separates aerobic, resistance and mind-body exercise. The pathways they reach sleep through — thermoregulation, neurochemistry, endocrine signaling, autonomic balance — overlap rather than divide.
There is still no exercise prescription for pregnancy hypertension — 13 studies in 17 years
Only 13 studies published between 2008 and 2025 tested structured exercise in women at high risk of or diagnosed with hypertensive disorders of pregnancy. The direction is mostly favourable, but intensity and safety criteria are too inconsistent to build a prescription from.
Losing weight during adolescence can lower the muscle and bone ceiling for life
GLP-1 drugs clearly improve weight and cardiometabolic markers in pediatric obesity. The complication is that the treatment window overlaps the one period when muscle and bone accrue fastest.
Inversion tables did not reduce back pain across 32 trials and 2,762 people
A systematic review of traction for low back pain found little or no effect on pain, function or return to work. Hanging upside down also roughly doubles eye pressure within seconds.
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