Fermented Foods and Gut Health: What the Evidence Shows
Fermented foods may support gut-health markers, but the evidence is food-specific, cautious, and weaker than most wellness claims suggest for longevity.
Can Weekend Catch-Up Sleep Really Repair Sleep Debt?
Weekend catch-up sleep may ease short-term tiredness, but it is not a full repair strategy for chronic sleep debt or repeated short nights either.
Menopause, Oestrogen, and Brain Fog: What We Know Now
Menopause brain fog is common and usually subtle, but hormone therapy is not a simple cognitive fix. Here is what the evidence says and when to seek review.
HRV Biofeedback: What Slow Breathing Can and Cannot Do
HRV biofeedback may help some adults practise stress regulation, but the evidence is mixed and it should not replace anxiety or cardiac care.
Lp(a) Testing: The Inherited Heart-Risk Marker to Know
Lp(a) is mostly inherited and usually silent. A one-time blood test can clarify heart risk, but results need clinical context rather than panic.
Berberine for Blood Sugar: Benefits and Safety Limits
Berberine may modestly lower glucose in type 2 diabetes, but supplement quality, medicine interactions, and pregnancy risks keep the case cautious.
Power Training After 50: Why Speed Matters for Ageing
Power training can help adults over 50 practise controlled speed, but it belongs beside strength, balance, and medical caution.
Time-Restricted Eating: Metabolic Promise and Limits
Time-restricted eating may help some adults reduce intake and improve markers, but trials suggest meal timing is not a metabolic shortcut for health.
Fibre and Longevity: What the Gut Evidence Really Shows
Fibre looks less like a longevity shortcut than a reliable marker of better diet quality, gut function, and lower long-term cardiometabolic risk.
Can Morning Light Improve Sleep and Metabolic Health? What the Research Says
Morning light is a credible way to support circadian timing and sleep regularity, but the evidence for direct metabolic benefits is still more limited and mixed.