The scientific and technological advancements made throughout the last few years have been incredible. And a cardio iphone app that can measure your heart rate through monitoring your facial expressions is an amazing example of that. This app takes technology to another level and can measure your heart rate through the phone’s camera analyzing the subtle facial changes caused by fluctuating heart rates.
The iphone app for monitoring heart rate is explained here, http://mashable.com/2012/08/10/iphone-heartrate-cardiio/. The benefits it offers are great for those with heart conditions but also beneficial when monitoring your heart rate for exercise effectiveness purposes. Of course there are already various heart monitors available including technical medical devices used to monitor heart rate continuously or just as needed, and heart rate monitors worn while exercising to make sure you are getting your heart rate high enough for optimal caloric burn, but those monitors have to be touching the body in order to work. This cardio app can measure your heart rate just by watching your facial expression.