alt Hacker NewsWell, that is a hard problem to solve. There's around a sugar cube's worth of glucose in an adult bloodstream and it's not as prominent optically as oxygenated blood.
Well, that is a hard problem to solve. There's around a sugar cube's worth of glucose in an adult bloodstream and it's not as prominent optically as oxygenated blood.
Glucose sensors exist. You can buy them for around $100 (per month).