Insulin resistance: what it is, which tests to get, and how to lower it after 40
Fasting glucose can stay normal for years while insulin climbs. Which tests to ask for, how to calculate HOMA-IR yourself, and what lowers insulin resistance after 40.
Ferritin: what it shows, how to raise it, and when a high level means looking for inflammation
Ferritin is the body's iron storage protein. A low result can be trusted; a high one proves nothing without CRP and transferrin saturation. How to raise it, lower it, and which tests to take.