Longevity and health claims, checked against the actual studies
Peer-reviewed studies, unbiased analysis
Living better, backed by the research.
We turn the peer-reviewed science of longevity, performance, and everyday health into something you can actually use, and we link every claim to the study behind it, so you can check the numbers yourself.
Every study verified on PubMed
Plain English, not clinical
Independent, no industry ties
Latest articles
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Can You Slow Biological Aging? What 51 Trials Show
An audit ran the same 16 epigenetic clocks across 51 human trials. Only 19 interventions did anything to slow biological aging, and few were supplements.
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Menopause Hormone Therapy: 20 Years After the Scare
Menopause hormone therapy relieves hot flushes and protects bone, but it is not a prevention drug. What 20 years of Women’s Health Initiative data show.
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Testosterone Therapy Risks: What TRAVERSE Really Showed
The biggest trial of testosterone therapy risks found no extra heart attacks, but more irregular heartbeats, lung clots and broken bones. The full picture.
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Biological Age Test: What the Number Really Means
A biological age test can be off by 9 years on a single blood sample. Here is what epigenetic clocks really measure, and which numbers to track instead.
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Mouthwash Blood Pressure Link: What the Trials Show
The mouthwash blood pressure link is real but small: antiseptic rinsing stalls a nitric oxide pathway on your tongue. Here is what the trials actually show.
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Fluoride IQ Study: What It Means for Your Tap Water
The 2025 fluoride IQ study pooled 74 studies and found a real link. Here is why it fades below 1.5 mg per liter, and what that means for…
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Blue Light Glasses: What 17 Trials Found
Blue light glasses were tested in 17 trials on 619 people: eye strain was unchanged, the sleep results disagreed, and the retina claim was never tested.
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Do Brain Training Games Actually Work? The Evidence
Do brain training games work? 11,430 adults trained for six weeks and gained nothing on untrained tests. What the evidence shows, and what helps instead.
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Adrenal Fatigue Isn’t Real, But Your Tiredness Is
Adrenal fatigue is not a real diagnosis: a review of 58 studies found the cortisol tests disagreed. Here is what the tiredness usually turns out to be.
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Hearing Loss Dementia Link: What the Big Trial Found
The hearing loss dementia link got its first proper trial: 977 adults, three years, hearing aids. Here is what it found, and what the headline number missed.
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