Research Digest
Research Library
Peer-reviewed papers from top journals, summarized and graded by evidence strength. Updated Mon, Wed & Fri.
May 10–16, 2026
2 studiesCreatine Plus Lifting May Help Postmenopausal Women Keep Muscle and Strength
Looking at seven trials in postmenopausal women, creatine combined with resistance training added small but real gains in lean mass and leg strength. The sweet spot was at least 5 grams a day paired with lifting. Lower doses without exercise did nothing, and bone density didn't budge either way. Side effects were mild and matched placebo.
Exercise May Ease Anxiety, Especially Mind-Body and Aerobic Workouts
Looking at 10 studies of about 2,400 adults with generalized anxiety, researchers found exercise was linked to lower anxiety symptoms. Mind-body workouts like yoga and aerobic exercise showed the biggest effects, while resistance training results were unclear. Programs lasting 8 weeks or more with sessions of 21 to 40 minutes seemed most helpful. However, the studies varied widely, so the authors caution this is suggestive, not definitive.
Mar 29 – Apr 4, 2026
2 studiesStrength Training May Reshape Brain Markers in Older Adults With Early Alzheimer's Signs
A 24-week strength training program altered Alzheimer's-related brain signatures in cognitively healthy older adults. The effect was strongest in participants who already had amyloid buildup in their brains. Those reductions in brain thickness markers were linked to better executive function, suggesting the changes were adaptive rather than harmful. This was a small trial of 90 people around age 72, so the results need replication.
Why Even One Workout Sharpens Your Thinking, According to Research
A single session of moderate to vigorous exercise reliably boosts executive function, processing speed, and working memory in adults. Cardio led the pack, but resistance training also improved executive function in many trials. The brain benefits seem tied to short-term spikes in BDNF, lactate, and prefrontal brain activity. So even one workout appears to give your brain a temporary lift.
Disclaimer: Research summaries are provided for informational purposes only and do not constitute medical advice. Always consult a qualified healthcare professional before making changes to your health routine.
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