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Intermittent fasting is more popular than ever for burning fat and regulating hormones, and recent research now indicates it also could help boost motivation. When you’re hungry, your body produces the hormone ghrelin, which stimulates appetite and increases your urge to eat. And according to a study published in the Journal of Endocrinology, limiting access to food (e.g., after a period of fasting) promotes a surge in the release of ghrelin, which in turn increases the motivation to exercise.
Try intermittent fasting yourself — eat all your meals and snacks within an eight-hour window, for instance 10 a.m. to 6 p.m. or 12 p.m. to 8 p.m.