Sex hormone-binding globulin (SHBG)
AdvancedTrack in Cellar· every few years
What it measures
A protein that binds sex hormones in the blood, affecting how much is free for tissues to use.
Why it's discussed for longevity
Commonly measured alongside testosterone to put the total level in context.
Source: MedlinePlus (NIH)Related tests in this area
- Testosterone (total & free)A sex hormone, measured as a total and as the free fraction …
- Thyroid panel (TSH, free T4, free T3)How the thyroid is regulating metabolism, from the pituitary…
- DHEA-sulfateAn adrenal hormone the body uses to make other sex hormones.…
- Estradiol & sex hormonesEstradiol, a primary estrogen, often grouped with related se…
- IGF-1A reflection of growth-hormone activity.…
- CortisolAn adrenal hormone that normally follows a daily rhythm, oft…