The quantified self movement has been mostly focused on athletes and people trying to be active and measure their progress, but in the last year or so it has branched into the medical realm. Cue is one such example of this phenomenon. The device, which debuted on Tuesday, tracks inflammation, vitamin D, fertility, influenza, and testosterone via a swab of spit, snot or blood. The Cue is a tiny handheld device that contains a microfluidics array to test a variety of hormones found in the blood (vitamin D, fertility, inflammation), saliva (testosterone) or mucus (influenza). For $300 at retail ($150 or $200 for a set number of pre-orders), you buy the device and get a set of five cartridges that will actually handle your bodily secretions and then be disposed of. This way a family can share a Cue much like they would a scale or thermometer. Additional cartridges cost between $2 and $5 depending on the test.