A watch just approved by FDA advisors is even cooler than a wrist-phone. The Gluco Watch uses painless skin sensors to measure blood sugar every 20 minutes without a poke or a prick. An alarm sounds if the glucose is out of range. So far, the watch has only been approved for adults. And so far, the manufacturers recommend a conventional blood test to confirm accuracy before deciding to give insulin. But I expect the technology will improve quickly from here, and that children's versions will be available soon. Relief is on the horizon for children with diabetes

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