Evidence Library
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Ratings apply to the specific claim assessed. Read each investigation for its findings and limitations.
Can Rapamycin Really Help Healthy People Live Longer?
WEAK — Rapamycin extends lifespan in important animal research, but longer life in otherwise healthy humans remains unproven. Human trials show selected signals, null findings and safety questions rather tha...
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Can Hyperbaric Oxygen Really Reverse Ageing?
WEAK — Hyperbaric oxygen has not been shown to reverse whole-body ageing or extend healthy human life. Interesting changes in blood-cell markers are preliminary evidence, not proof of rejuvenation.
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Can Exercise Really Reduce Cancer-Related Fatigue?
MODERATE — Appropriately adapted exercise can reduce cancer-related fatigue during and after treatment. Evidence is moderate, and the programme needs to fit the person's condition, treatment and capacity.
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Is Gluten-Free Really Healthier If You Do Not Have Coeliac Disease?
WEAK — A gluten-free label does not make a diet healthier for someone without a gluten-related disorder. Some people have genuine reasons to avoid gluten or wheat, but a universal health advantage is not est...
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Does Alkaline Water Really Improve Your Health by Changing Your pH?
WEAK — Alkaline water has not been shown to prevent disease or ageing by making the body more alkaline. Some mineral-rich waters affect selected measurements, but that is a much narrower claim than systemic ...
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Does Sourdough Really Cause Smaller Blood-Sugar Spikes?
UNCLEAR — Sourdough does not reliably produce a smaller glucose response than otherwise comparable yeast bread. Results vary, and an August 2026 review found the evidence insufficient for a general advantage.
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Do Fermented Foods Really Reduce Inflammation?
LIMITED — Some human trials suggest fermented-food diets can change the microbiome and inflammatory markers. Evidence that adding them consistently reduces systemic inflammation in healthy adults remains lim...
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Can Ab Exercises Really Burn Belly Fat Specifically?
WEAK — Ab exercises are not a reliably established way to choose where body fat comes off. Most pooled evidence does not support spot reduction, although a small positive trial deserves fair consideration.
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Can Supersets Build Muscle in Less Time?
MODERATE — Well-designed supersets can shorten workouts while producing similar gains in the available studies. Evidence is moderate, and exercise pairing matters: a shorter session can also feel harder.
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Do Super-Slow Reps Really Build More Muscle?
WEAK — Deliberately slowing every repetition has not been shown to reliably build more muscle. A range of controlled tempos can work; extra time under tension is not automatically extra growth.
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Do You Have to Train to Failure to Build Muscle?
WEAK — You do not have to take every working set to momentary muscular failure to build muscle. Training effort still matters, and stopping far short of failure is a different question.
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Is Morning Exercise Really Better Than Evening Exercise?
UNCLEAR — No single time of day is established as best for everyone's health and training gains. Some effects depend on the outcome, the person and when performance is tested.
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