About 415 million adults worldwide have Type 1 or Type 2 diabetes according to the International Diabetes Association. IBM and medical device maker Medtronic are working on an app that could really help them.By analyzing data from Medtronic diabetes monitoring devices (insulin pumps and glucose monitors), IBM’s artificial intelligence computer Watson can predict a low blood sugar problem up to three hours before it actually hits. That’s enough time to take corrective action and prevent…