Additional copy explaining why these biomarkers are only tested annually, and here is some copy explaining way that is the case.
Insulin-like Growth Factor (IGF-1) is a hormone made by the liver that tells your bones and muscles to grow. People with low IGF levels are more likely to have metabolic syndrome — high blood pressure, high cholesterol, more belly fat — and increased risk for heart disease and type 2 diabetes. IGF-1 responds quickly to lifestyle changes, such as sleeping and lowering stress, and the targeted peptide, sermorelin.
Low IGF-1 is associated with:
Muscle mass loss
Brittle bones
Thin skin
Low energy levels
Slow metabolism
*This biomarker is tested annually, and here is some copy explaining way that is the case.