If you or someone you know has diabetes, you know your blood sugar levels tend to change throughout the day. Even when you monitor your glucose often enough, you are getting only a small portion of the whole picture.

In a perfect world, our immune system would work seamlessly—able to sense and recognize infectious organisms and foreign invaders (called antigens) and fight off disease with powerful and protective antibodies. But sometimes, it malfunctions.

Dan Pelino didn't settle into retirement easy, after almost 40 years with IBM on the business side of healthcare, he decided to become an author!