Supplements & Nootropics
Zinc Supplements for Immunity: Signal, Not Cold Armour
Zinc matters for immune function, but supplements mainly help when intake is low. The evidence for colds, older adults, and safety is narrower.
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Exercise & Movement
Tai Chi After 60: Balance Practice, Not Fall Insurance
Tai chi can improve balance and may reduce falls in older adults, but it works best as structured practice, not as a guarantee against injury.
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Fasting & Metabolic Health
Early Dinner for Glucose Control: Useful, Not a Cure
Eating earlier may modestly help glucose control, but the evidence supports timing as a small metabolic lever, not a stand-alone treatment for everyone.
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Fasting & Metabolic Health
Late Eating and Glucose: Timing Signal, Not Verdict
Late meals can worsen glucose handling for some people, but timing is a signal to adjust, not a moral rule. Here is what the evidence actually shows.
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Stress & Nervous System
Awe Walks for Stress: Useful Practice, Not Therapy
When stress narrows the world, attention tends to fold inward. The inbox, the symptom, the replayed conversation: each becomes larger because the mind has little room for anything…
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Nutrition & Diet
Food Emulsifiers and Gut Health: Plausible, Not Proven
Emulsifiers make packaged foods smoother and longer lasting. Human evidence raises real questions, but it is not yet a reason to fear every label.
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Biomarkers & Testing
GGT Blood Tests: Liver Signal, Not Longevity Score
GGT is a useful liver enzyme signal, but it cannot diagnose disease or rank your longevity. Read it with the wider panel and clinical context.
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Biomarkers & Testing
Homocysteine Testing: Vascular Signal, Not Verdict
Homocysteine can flag B-vitamin, kidney, and vascular risk signals, but the evidence does not make it a standalone longevity score or treatment target.
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Hormones & Optimization
Menopause Brain Fog: Real Symptom, Not Dementia Signal
Menopause brain fog is easy to minimise until it happens to you. A name vanishes mid-sentence. A familiar task takes longer. The brain feels less quick, less orderly,…
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Sleep Optimization
CBT-I for Insomnia: Sleep Training, Not Sleep Hygiene
CBT-I treats chronic insomnia by retraining sleep timing and habits. It is first-line care, but not a quick fix or a cure-all for every sleeper.
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