Tracking: Having the ability to either manually input workouts or to sync with electronic pedometers would allow the user to track their exercise.
Goals: Allowing the user to set goals for themselves and track their progress on them.
Sharing: The ability to share their workouts and goals with their friends would be very useful
Diet
Tracking: The ability for the user to input food consumed would allow the user to track their deit over time.
Goals: You could set a goal about how much of one nutrient of another you want to eat.
Other
Ergonomics: The user could be trained on how to be safe in terms of ergonomics to make sure they don't hurt themselves using their computer or mobile device.
Sleep: The ability to track how much users sleep would be very valuable.
Anylasis
The ability to compile data from excercise, sleep and diet is vital and should be easily exported into Calligra for anylasis.
