Topic
Fitness & Exercise
How to move: strength, cardio and intervals, everyday physical function, joints and bones, and how exercise shapes health and aging.
High midlife fitness tracked 31% lower dementia risk, independent of coronary artery calcium
Cooper Institute and Tel Aviv University researchers linked 10,933 treadmill-tested adults to Medicare records. A coronary calcium score of 100 or more tracked about a quarter higher risk, and the two signals barely overlapped.
Sep 14, 2026
Weekend warrior exercise tracked 36% lower death risk in adults with two or more cardiometabolic conditions
South China Normal University researchers tracked 15,079 US adults with at least two of heart disease, diabetes and stroke through national death records. Regular exercisers fared similarly, but only 272 people fit the weekend pattern.
Sep 14, 2026
One osteoporosis drug came with 17% less new osteoarthritis than the standard alternative
Denosumab and bisphosphonates both treat thin bones. Comparing new users in Japanese insurance records, one of them also came with fewer new osteoarthritis diagnoses over three years, at 2 fewer cases per 100 people.
Aug 31, 2026
Only the group that lifted weights kept its diabetes-risk gain a year after the diet ended
221 women dieted to a healthy BMI, then regained about a third of it. Predicted heart and diabetes risk fell and then bounced back in every group but one: the arm that had added resistance training held on to its diabetes benefit.
Aug 31, 2026
Fitter 46-year-olds cost the Finnish health system 11% less a year, and grip strength mattered too
Fitness studies usually stop at disease risk. Researchers linked step-test and grip-strength results for 4,468 Finns to six years of national spending records, then used genetics to test whether the link was causal.
Aug 30, 2026
Fusing an arthritic big toe cut walking pain from 5.7 to 1.3 in the first trial to test it
Hallux rigidus is common and its main operation had never been compared against simply waiting. A Finnish randomized trial of 90 adults found fusion beat watchful waiting by 5 points on a 10-point walking pain scale at 12 months.
Aug 28, 2026
Supervised exercise in pregnancy cut gestational diabetes risk by a quarter across 19 trials
A British Journal of Sports Medicine meta-analysis pooled 19 randomized trials and 6,213 pregnancies. Gestational diabetes, gestational hypertension, excessive weight gain and large babies all fell, on moderate-certainty evidence.
Aug 28, 2026
Combining cardio and weights lowered deaths by 60% in coronary heart disease trials
Cardiac rehabilitation has long meant a treadmill. A Sports Medicine Open meta-analysis of randomized trials found adding resistance training beat aerobic exercise alone on fitness and quality of life, and cut mortality against usual care.
Aug 26, 2026
Exercise for muscle loss peaked near 690 MET-minutes a week, then the benefit fell away
A Geriatric Nursing network meta-analysis of 29 randomized trials modeled dose curves for sarcopenia. Grip strength and walking both improved from 140 MET-minutes, both turned over at the top, and each preferred a different exercise.
Aug 26, 2026
Pilates, yoga and qigong each led a different outcome for cancer patients across 73 trials
A pairwise, network and dose-response meta-analysis of 73 randomized trials and 5,130 cancer patients ranked five mind-body exercises. No single one won everything, and the benefit peaked near 490 MET-minutes a week before falling away.
Aug 26, 2026
Perturbation training topped 19 exercises tested for balance in 423 trials of 33,901 older adults
A Bayesian network meta-analysis pooled 423 trials and 33,901 older adults to rank 19 kinds of exercise for balance. Deliberately being knocked off balance came top. Stretching was the only one that did nothing.
Aug 25, 2026
Light weights with a blood flow cuff matched heavy lifting for strength in 45 rehab trials
A British Journal of Sports Medicine review pooled 45 trials and 1,652 people in musculoskeletal rehab. Low-load exercise with a blood flow cuff beat low-load exercise alone for strength, and drew level with heavy lifting.
Aug 25, 2026
Baduanjin qigong eased anxiety in people with glaucoma, but no eye pressure was measured
112 people with primary glaucoma were randomized to eight weeks of Baduanjin or to routine care alone. Anxiety, depression and sleep scores improved in the exercise group. No eye pressure or vision outcome was measured.
Aug 24, 2026
Stair climbing tracked 39% fewer heart disease deaths across 480,479 people
A UEA meta-analysis pooled nine studies and 480,479 people. Regular stair climbers were 39% less likely to die of heart disease. The evidence is observational, and the people who take the stairs differ in ways that matter.
Aug 24, 2026
Exercise before bowel surgery barely moved fatigue scores in 518 patients
518 people having colorectal cancer surgery were randomized to extra moderate exercise around the operation. Fatigue scores came out slightly better. Quality of life, pain and mental recovery did not move at all.
Aug 18, 2026
Exercise delayed ovarian aging. In mice, not in women.
A Nature Aging paper reports that physical activity delays ovarian aging. Its 164,853 human participants were compared at a single moment, which cannot show that. The delaying was demonstrated in mice.
Aug 17, 2026
Moderate exercise tracked 21% less cataract, more did not
In 77,123 UK Biobank participants wearing accelerometers, 150 to 600 minutes a week of moderate-to-vigorous activity came with a fifth less cataract. The curve was U-shaped, and vigorous activity alone showed nothing.
Aug 16, 2026
A blood pressure spike on the treadmill depends on fitness
Across 5,087 people having an exercise stress echo, a high peak blood pressure came with a heavier heart muscle in the fit and the moderately fit, but not in the unfit. The unfit had the most adverse hearts anyway, at the same peak reading.
Aug 14, 2026
Inherited blood pressure risk tracked dementia in women only
In 9,145 Norwegians aged 70 and over, women in the top fifth for genetic blood pressure risk had higher odds of dementia. Men with the same genetics did not. Among fitter women the association was weaker.
Aug 9, 2026
Weekend workouts tracked bone health as well as daily ones
Two national datasets, 6,972 Americans and 52,989 Britons wearing wrist monitors, compared people who cram exercise into one or two days with those who spread it out. Bone density was similar, fractures slightly rarer in the weekend group.
Aug 8, 2026
The exercise that protects muscle depends on your frailty
Following 10,871 Canadians for six years, gentle activity tracked with less muscle loss in frailer adults, while only strenuous activity did so in robust ones.
Aug 6, 2026
Intervals ranked best for belly fat, but more was not better
Pooling 60 trials in 3,308 adults, researchers ranked four kinds of exercise against the fat packed around the organs. Intervals came top, and the dose-response curve turned back on itself past a moderate weekly load.
Aug 4, 2026
Walking breaks every 30 minutes worked best. Nobody kept it up.
A 19,342-person trial tested 5-minute walking breaks at three frequencies. The most effective schedule was the least sustainable, and hourly landed in between.
Aug 2, 2026
High genetic risk plus few steps tripled heart disease risk
UK Biobank tracked 84,286 people with wrist monitors and genetic scores. Steps and genes acted independently, which means walking helped the genetically unlucky just as much.
Aug 2, 2026
Light weights to failure grew more muscle than heavy ones
A 201-person trial in Medicine & Science in Sports & Exercise had untrained adults lift heavy or light until they could not manage another repetition. The light group gained slightly more muscle, about a millimeter of extra thickness.
Aug 1, 2026
Fast lifting built power in older adults, but not for everyone
A GeroScience trial put 36 middle-aged and older adults through 12 weeks of deliberately fast lifting. The gains came from force, and the speed gains went only to the slowest.
Aug 1, 2026
Weight training eased depression. So did the fake version.
A trial in young anxious women compared real resistance training against a deliberately feeble sham. Both produced large improvements, and the gap between them never became clear.
Aug 1, 2026
Atrial fibrillation sped up muscle loss over 12 years
A Swedish study of 2,048 older adults found people with the common heart rhythm disorder lost strength faster, and lost it fastest when inflammation markers were high.
Jul 31, 2026
Arriving at 70 fit mattered more than getting fit after
A Generation 100 study of 1,491 Norwegians aged 70 to 77 found those with higher measured fitness had roughly half the Alzheimer's risk, while a year of improvement added little.
Jul 29, 2026
Sitting tracked with liver disease, not just heart disease
A Medicine & Science in Sports & Exercise study of 86,746 UK Biobank participants wearing accelerometers linked sedentary time to higher rates of chronic liver disease and liver-related death.
Jul 29, 2026
Exercise eased low mood in teens, and the EEG showed why
A JAMA Network Open trial gave 206 Chinese adolescents with mild depressive symptoms 12 months of aerobic exercise and found symptoms fell further than with psychoeducation.
Jul 29, 2026
Walking tracked with less dementia, nearly as much as running
A Lancet Public Health study followed 107,036 US health professionals for over 30 years and found walking tracked with lower dementia risk almost as strongly as vigorous exercise.
Jul 29, 2026
Swimming beat advice alone for chronic back pain
A British Journal of Sports Medicine trial randomized 76 adults with chronic low back pain to swimming plus education or education alone, and found a real short-term gain that faded by a year.
Jul 28, 2026
Interval training changed brain structure in cannabis users
A Molecular Psychiatry trial put 59 people with cannabis use disorder through 12 weeks of high-intensity intervals and found measurable changes in white matter and cortical thickness.
Jul 27, 2026
Exercise improved arteries where liraglutide did not
A Nature Metabolism analysis of 130 adults keeping weight off found exercise thinned artery walls and cut inflammation, while the drug liraglutide alone did neither despite similar weight control.
Jul 26, 2026
High-impact exercise did not wreck knees with osteoarthritis
A British Journal of Sports Medicine analysis of 17,661 Danes with hip or knee osteoarthritis found those doing high-impact activity were less likely to need a hip replacement, not more.
Jul 26, 2026
Resistance training in midlife tied to 42% less diabetes
A JAMA Network Open study of 143,715 US health professionals found people who kept up resistance training from 40 to 60 had 42% lower type 2 diabetes risk than those who did almost none.
Jul 26, 2026
Exercise kept older muscle young at the molecular level
A Nature Aging study of muscle samples from young and older adults found that half the molecular differences normally caused by age were simply absent in older people who had trained for years.
Jul 25, 2026
A blood 'fitness signature' tracked much lower death risk
A pattern of blood molecules that mirrors physical fitness tracked much lower death and disease risk across about 354,000 UK Biobank participants over nine years. The pattern travels with fitness; shifting it may not change outcomes.
Jul 24, 2026
Strength training's longevity sweet spot: two hours a week
Research in the British Journal of Sports Medicine tracked 147,374 people for up to 30 years. About 90 to 120 minutes of strength training a week lined up with the lowest risk of death, and more added nothing. A link, not proof.
Jul 22, 2026
Grip strength and chair stands tracked with longer life
In 5,472 women aged 63 to 99, two simple measures - grip strength and how fast they rose from a chair - tracked with living longer over eight years, even after accounting for exercise. It shows a link, not proof.
Jul 21, 2026
HIIT cut fat and held muscle in older adults, but barely
In a six-month trial of more than 120 healthy older adults, high-intensity interval training cut fat while holding onto muscle, unlike moderate exercise. The authors say the differences between intensities were small.
Jul 17, 2026