Health markers, explained

Vitamin K: not just clotting – bones and heart

Vitamin K2 activates proteins that deposit calcium in bones and protect arteries from calcification – its role extends well beyond coagulation.

Thyroid in pregnancy: TSH ranges and monitoring

The thyroid works 50% harder during pregnancy. Learn how TSH ranges change each trimester and what to monitor.

Transferrin Saturation (TSAT): The Key to Iron Transport

An article about transferrin saturation (TSAT) as an important blood marker for iron transport and what low or high values may indicate.

Iron Deficiency vs Inflammation: How to Tell Apart

Ferritin rises with inflammation too — how to distinguish true iron deficiency from falsely elevated ferritin using CRP, TSAT and other markers.

Restless Legs Syndrome: what blood tests show

Restless legs syndrome is often linked to iron, ferritin, magnesium or B12 deficiency. Learn which blood tests help find the cause.

Diabetes Complications: What to Monitor

Diabetes complications affecting kidneys, heart, and nerves can be detected earlier through regular blood monitoring -- HbA1c, eGFR, lipid panel, B12.

Loss of Appetite: What Blood Tests Reveal

Loss of appetite may indicate liver, kidney, inflammation, or vitamin disorders. Learn which blood tests to take first.

Summer vs Winter Blood Tests: Seasonal Changes

How seasons change vitamin D, TSH, hemoglobin, and CRP levels, and when to schedule blood tests.

Smartwatches: HRV, SpO2, and Sleep Data

What smartwatch HRV, SpO2, and sleep data mean, when they matter, and what their limits are.

Inflammation and Diet: How Food Affects CRP

How the Mediterranean diet, omega-3, fiber, and processed foods affect CRP and chronic inflammation.

Vegan Diet: What to Check in Your Blood Tests

Key blood tests for vegetarians and vegans: B12, iron, ferritin, vitamin D, zinc, and other markers.

Menopause: The Most Important Blood Tests

Key menopause blood tests: FSH, estradiol, lipids, TSH, vitamin D, glucose, and inflammation markers.

B12 and Folate: Nerve and Blood Health

B12 and folate deficiency can affect nerves and blood long before symptoms appear. Who is most at risk and what you need to know.

Kidney Function: What Creatinine and eGFR Reveal

Creatinine and eGFR show how well your kidneys filter blood. Learn what these markers mean and why early detection of problems matters.

Testosterone: What a Man's Blood Test Really Shows

Testosterone governs muscles, energy, mood and metabolism. Learn what your blood test numbers mean and how lifestyle drives levels.

Vitamin D: Immunity, Bones and Mood

Vitamin D is far more than a bone vitamin. It regulates immunity, mood and muscle function. Who is at risk of deficiency — and what to do about it.

Liver Enzymes: What ALT, AST and GGT Tell You

ALT, AST and GGT are three liver stress markers in a standard blood test. Learn what elevated levels mean and how lifestyle drives results.

Constant Fatigue: What 5 Blood Markers Can Reveal

Fatigue is the most common complaint doctors hear — and one of the most common cases where the answer hides in a simple blood test. Five markers worth knowing.