AppScent, an Israeli start-up company is working on a sleep apnea solution that uses scent. The company, in association with Weizmann Institute of Science, has worked to create a non-invasive medical device that combines long-distance remote sensors and unique scents to indicate sleep apnea and prevent it from happening. The external symptoms of sleep apnea include snoring, dry mouth  and headaches—and the disorder can lead to much more dangerous situations such as increased risj of high bloo...