'Researchers have developed a way to use a laser to measure people's blood sugar, and, with more work to shrink the laser system to a portable size, the technique could allow diabetics to check their condition without pricking themselves to draw blood. In a new article, the researchers describe how they measured blood sugar by directing their specialized laser at a person's palm.'
http://www.sciencedaily.com/releases/2014/08/140821141610.htm
... We live in interesting times.