... having a consistent sleep and training schedule is the way to go. I also think we should focus on metrics that have less variance from one day to the other (such as VO2 max, strength, muscle mass using DEXA). They help us see the macro trend of our health better. Hope this helps! Thanks for the question! Comment from David Manda(@davidmanda): @rajiv_ayyangar  That sounds right to me. I think you might find the Movitalis app interesting ... ... Comment from Nika(@busmark_w_nika): How precise are all of those health trackers e.g. calorie burners and those apps that reckon approx weight lost? Because even when I do any activity, it doesn't count conditions (hot room vs