Kurt Greiner
Testosterone After 40: What Normal Actually Looks Like
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The 1-2%-a-year decline story oversells itself. Here’s what the actual data says about testosterone and age 40+, and the diagnostic steps that matter more than the number. Read more…
HRT and TRT: Separating Evidence from Marketing
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The WHI scare and the FDA’s testosterone caution both trace back to specific, narrower findings than the headlines suggested. What the timing hypothesis and the TRAVERSE trial actually changed – and where hormone marketing still outruns the data. Read more…
Which Workout Actually Lowers Your Inflammation?
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A network meta-analysis of 55 trials in healthy adults ranked resistance training first for CRP and aerobic training first for IL-6 and TNF-alpha. It is a ranking across trials, not a prescription. Read more…
Why Your Walking Speed Might Be a Brain-Health Signal
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Among adults aged 80 and older, the fastest walkers had about half the risk of developing cognitive impairment compared with others their age. Here is what that observational finding does and doesn’t mean. Read more…
Recent Longevity Research: Cartilage and Funding
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A microRNA that protects cartilage in mice and rats, and a new nonprofit that says it plans to fund basic aging research: a roundup of two recent longevity stories. Read more…
Expired Medicine: What the Date Means and What FDA Says
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FDA says not to use expired medicine, and this post explains what the date means, where the real risks are, and how to store and dispose of old bottles. Read more…
