Function Health offers a $500 annual service that provides comprehensive blood and urine testing, measuring over 90 different health biomarkers not typically analyzed by regular doctors.
The research highlights how male mice that overexpress fibroblast growth factor 21 (FGF21) not only maintain a lean physique but also exhibit increased longevity compared to their non-modified counterparts, suggesting that FGF21 plays a pivotal role in weight regulation and health span.