Consumers are more than happy to keep track of their own vital signs — but few are actually doing it outside the doctor’s office and many don’t even know what vital signs they should be tracking, according to a new study by one of the world’s leaders in personal health monitoring, France-based Withings. According to the survey, 82 percent of Americans think tracking vital signs at home is important, but in practice many watch just one, such as BMI or body temperature, and very few are serious about doing so. One reason may be that they need an incentive: 75 percent of those surveyed said they’d check vitals if it helped them save money on insurance premiums. Half of those surveyed don’t own any devices to track their vital signs, according to Withings officials, but they would do so if given the equipment. Again, the point being made is that consumers need to be incentivized to track their vitals.