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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biomarkersWhat Your Sleep Says About Your Hormones
Poor sleep is both a symptom and a cause of hormonal imbalance. Learn which biomarkers connect to common sleep issues.
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biomarkersCholesterol explained: LDL, HDL, triglycerides — what the numbers mean
Heart disease causes 1 in 4 UK deaths. Understanding your LDL, HDL, triglycerides and the ratios between them is one of the hig...
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biomarkersInsulin Resistance: Early Signs and Biomarkers
Insulin resistance develops silently for years before glucose moves out of range. Learn the early biomarkers and signs worth ch...
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biomarkersPSA test explained: prostate health for men over 45
1 in 8 UK men will be diagnosed with prostate cancer. The PSA test is one of the simplest ways to catch it early. Here's what t...
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biomarkersTestosterone in men: what your levels actually mean
Testosterone levels in UK men have fallen 20% in 30 years. Here's what your level should be, what affects it, and how to test i...
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biomarkersCholesterol After 40: The Markers That Matter Most
Total cholesterol alone is a blunt indicator. Learn which lipid markers are most useful for cardiovascular risk in your 40s and...
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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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biomarkersCortisol and Burnout: What Your Stress Hormone Reveals
Cortisol is your main stress hormone. Chronic elevation drives weight gain, poor sleep, anxiety and fatigue. Learn how a UK blo...
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