What I have read you can basically make a trade off with IGF-1. You can live more years by lowering IGF-1 but you are going to feel older with lower IGF-1. I

What I have read you can basically make a trade off with IGF-1. You can live more years by lowering IGF-1 but you are going to feel older with lower IGF-1. I would much rather have a longer period of high IGF-1 than a longer overall total lifespan.