Insights for better health.
Evidence-based articles on biomarkers, longevity, and the science of preventative health — written by the ChXhealth team.
B12 deficiencyVitamin B12 deficiency: symptoms, causes, and how to test
Vitamin B12 deficiency is sneaky: vegetarians, older adults, and people on common medications are most at risk. Here's how to s...
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brain-fogVitamin B12 and Brain Fog: When to Test
B12 deficiency can cause brain fog, fatigue and memory problems long before classic anaemia symptoms appear. Learn when testing...
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fatigueLow Ferritin and Hair Loss: The Iron Connection
Hair shedding is one of the most common visible signs of low iron stores. Learn the ferritin threshold and how to test.
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anaemiaFerritin and iron: why fatigue might mean your stores are low
Low ferritin is the most common nutrient deficiency in the UK. Here's why it matters, what the numbers mean, and how to test yo...
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biomarkersWhy Am I Always Tired? Biomarker Causes Explained
Persistent tiredness has a relatively small list of common biomarker causes. Learn which markers to check and why.
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