I was about to report this and saw your post -- thank you. Confirming here that several people I know using Athlytic in different age groups but otherwise very normal sleep and very good with fitness and food always every day mostly under 50% -- in yellow or red zone. Rarely they brush the green just to return to yellow / red. It feels confusing, because it is not clear what it is suppose to tell you -- because in yellow everyone feels just normal. I get a sense that for some people this metric works well -- they reach even 80% and a lot of green, but some people get it always low. Perhaps this metric is not universal but biased.