Balancing Calories with Smartphone

Background: People gain weight when assume more calories than their body can consume. Instead, they lose weight when they consume more than what they eat. Comparing the body to a closed system, we can call calorie balance the difference between the input and output calories. However, keep a balanced diet regime is never a rewarding activity and often people give up. Objectives: The goal is to help subjects with overweight problems: educate these people reduces the number of people that might migrate in the obese class. We propose an application to encourage healthier lifestyles, whose innovative feature is an automatic adaptive monitoring of the daily calorie balance. The system uses a familiar device and motivates the users to reach best result with the diet. Methods: The energy consumption is related to the oxygen consumption, obviously also if combined with physical activity.