If your IGF-1 levels stay elevated after you’re old enough to vote, your cells will continue to get the message to continue to grow and divide. As you might expect, the higher the IGF-1 in your bloodstream, the higher your risk for developing some cancers, such as breast,870 colorectal,871 and prostate.872 (That doesn’t seem to be the case, though, with lung,873 ovarian,874 or pancreatic cancer.
