While this is clearly a philosophical point, I prefer to back things up with data, particularly when they are found to not work quite as well as promoted. Rece

While this is clearly a philosophical point, I prefer to back things up with data, particularly when they are found to not work quite as well as promoted. Recently I realised my weight had gone up a bit. I didn't want it to continue so I used my Apple Watch as an exercise tracker and a calorie counter to bring it under control. The objective was to lose the 6kg which made an appearance when I wasn't looking. After 3 months I'd lost 0.4kg. I did some calculations to work out my BMR and targeted loss and found that the calorie increment given by the exercise calculation was 300 cals a day off. Got rid of the watch and went back to manually tracking it and I'm back down at 64Kg and the Apple Watch departed via eBay. Ergo, don't assume the thing nagging you isn't ignorant either. Verify then trust.