Nora Feldman
Supplements Reviewer
Supplement shoppers asking "does this actually work?"
Nora Feldman reviews supplements and compounds against the evidence — creatine, magnesium, NMN, the lot — assigning honest strength-of-evidence ratings and cheerfully puncturing the hype that surrounds them.
Latest articles
The Dental Chair as an Early Warning System for Neurodegeneration
A new clinical review argues that dentists routinely see the earliest orofacial clues to Parkinson's, Alzheimer's, ALS and MS — and that catching them could shave months off the diagnostic odyssey.
Microplastics and Male Fertility: The Exposure Story Sharpens
A new comprehensive review catalogs how plastic particles may disrupt male reproductive biology — the mechanisms are accumulating faster than the human evidence.
Rewriting the Reference Range: How Age and Sex Reshape the Immune System
A meta-analysis across three large cohorts maps how immune-cell proportions drift with age, sex, and CMV status — and why that should make you skeptical of any 'immune age' panel that ignores who you are.
Are U.S. Magnesium Reference Ranges 50 Years Out of Date?
Researchers just built the first contemporary serum-magnesium reference intervals for Americans since the Nixon era. Here is what that quietly changes about your lab results — and your supplement habit.
Plasma p-tau217 Goes Mainstream — But Does One Cutoff Fit Everyone?
A new 2,798-person disparities cohort puts the leading Alzheimer's blood test under a fairness lens. The biomarker held up across groups — the single threshold did not.
RSV Is No Longer Just a Pediatric Problem: The Adult Vaccination Era Arrives
Global mortality data flipped a long-held assumption about respiratory syncytial virus — and three newly approved adult vaccines are reframing what healthy aging looks like in respiratory season.
Mito-Inhibitors in the Bloodstream: A New Clue to Alzheimer's Bioenergetic Decline
A small serum study fingers two circulating lipids — nervonic acid and 15-epi-PGA1 — that throttle mitochondria in a dish. It's early, but it reframes Alzheimer's as a whole-body energy problem.
Senescence as a Cancer Clock: Reading Aging Biology Inside Multiple Myeloma
A 1,416-patient analysis suggests a curated senescence gene signature tracks with survival in multiple myeloma — an early but credible sign that geroscience biomarkers may sharpen oncology prognosis.
Microplastics and Aging: What the First Meta-Analysis Actually Shows
A pooled look at 33 studies finds microplastic exposure consistently nudges oxidative-stress markers upward. The signal is real — but so are the caveats.
Why Your Flu Shot Works Less Well at 70: The New Science of Fixing Vaccines for Older Immune Systems
Aging immune systems mount weaker responses to vaccines. A new Nature Aging review maps the engineering — higher doses, smarter adjuvants, mRNA — designed to close the gap.
Female Cardiovascular Physiology Is Not Male Physiology — And the Lifespan Data Are Finally Arriving
A new Physiology review maps how sympathetic nerves, baroreflexes and blood pressure shift across the menstrual cycle, pregnancy and menopause — and where the science still goes dark.
Sex-Specific Brain Aging: Why the Female and Male Brain May Need Different Longevity Playbooks
A new Neuron perspective and a longitudinal hippocampal study suggest biological sex shapes how brains age — and that 'one-size-fits-all' cognitive care may be quietly outdated.