If you don't, your body goes into conservation mode and saves as much as possible — burning fat is simply last on the list. (fitnessandpower.com)
The unit can also display on screen information such as battery life and has a battery conservation mode. (10exposed.com)
And weight gain or difficulty losing weight is a huge side effect of mitochondrial dysfunction because your body is in resource conservation mode, not fat burning mode. (maryvancenc.com)