Health Library · Health topics

Common conditions, explained with sources.

What each condition is, how it is usually detected and which biomarkers relate to it. Educational information — not a diagnosis.

Heart & circulation

Cardiovascular riskCardiovascular disease is the leading cause of death worldwide. Learn which risk factors matter, which blood tests are used and how risk is usually assessed.

Kidney health

Chronic kidney diseaseChronic kidney disease is a long-term reduction in kidney function that often has no early symptoms. Learn which tests detect it and who should be checked.

Liver health

Fatty liver disease (MASLD)Fatty liver disease is a build-up of fat in the liver, often linked to weight and metabolic health. Learn how it is found, which tests are used and what helps.

Joints & metabolism

GoutGout is a type of arthritis caused by uric acid crystals in a joint. Learn how it relates to blood uric acid, what triggers attacks and how it is managed.

Nutrition

Metabolic health

Prediabetes and insulin resistancePrediabetes means blood sugar is higher than usual but not in the diabetes range. Learn how it is detected, why it matters and what lowers the risk of type 2 diabetes.

Hormones

Underactive thyroid (hypothyroidism)Hypothyroidism means the thyroid gland does not make enough hormone. Learn the common symptoms, how TSH testing is used and why it is often missed.

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