The problem with wearables is that usually people stop wearing them. According to one recent report, one-third of users of activity-tracking wearables, like the Fitbit and the Jawbone, toss their devices aside after just six months. To overcome this, a small cadre of companies has been furiously working to develop smaller, sleeker, more discreet devices that monitor health and wellness–in the form of temporary tattoos, band-aids, and ingestible pills. MC10’s Biostamp is one of the contenders. Thinner than a band-aid, and the size of just two postage stamps, the Biostamp can be affixed to any part of the body. Its sensors can monitor temperature, movement, heart rate and more, and transmit this data wirelessly back to patients and their clinicians.