A unique application detects small changes in the color and brightness of a person's finger to measure their heartbeat.

One of the themes that came up during our research for the PSFK Future of Health report was the idea of the DIY Checkup, the appearance of mobile apps and peripherals that bring diagnostic tools in some shape away from medical centers and closer to individuals. These systems may not completely replace the expertise and quality of medical professionals and high-end equipment, but they do give people a better sense of conditions that they would not have available otherwise, so that they can make better decisions about whether to immediately consult with a physician.

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