During dieting and exercise, no less:
People keep wanting to think that just moving more and eating less will solve the developed world's diabesity epidemic. Look around. You can see how well that's working. Every popular idea about managing bodyweight is so outrageously wrong, it's almost laughable when the contemporary voices of popularity crop up to reiterate their message they've been preaching for the exact same period of time that obesity has skyrocketed.
We have to start paying attention to the biorhythms and hormonal cascades. As pointed out in this research, you can block fat burn during the very same exercise which supposedly was going to burn off your fat. Oops.
It's all well-intentioned. Even tracking technology was a great idea, except that the obesity rate has accelerated in kind with the adoption of tracking tech. In fact, most people I know who obsess over FitBits and such never get leaner. And of course this is the case, because it's not a simple equation of moving more while eating less. There are so many more factors at play when we discuss human biology.