I've been looking into a few models for scoring health (such as Nudge, Higi, Dacadoo, Tictrac and One Health Score).
I haven't found details of the exact formula used for tracking these. Generally, they will take various inputs like age, height, weight, gender, nutrition, activity, sleep and mood to calculate a single number. In the case of Digital Health Scorecard they claim a higher score correlates to lower likelihood of developing certain chronic conditions.
Does anyone have background on how these scores may be calculated? How might others try to calculate a score using inputs like gender, age, height, weight, blood pressure, blood glucose and steps? How might you incorporate sleep, mood and nutrition into this as well?