Why do you feel hungry after a physical exercise? Explain.
Answers
When you use up your glycogen stores, your liver secretes a hormone called ghrelin, which tells your brain it's time to chow. If you go into a workout with already-low glycogen stores, exercising can further deplete them and trigger the release of ghrelin.
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Ans = There are several reason you might feel like you could eat a horse after hitting the gym. The first: you went into the workout already hungry. “Many people go into workouts undernourished and come out ravenous,” says registered dietitian Maya Feller. But how, exactly, does that work?
There are several reason you might feel like you could eat a horse after hitting the gym. The first: you went into the workout already hungry. “Many people go into workouts undernourished and come out ravenous,” says registered dietitian Maya Feller. But how, exactly, does that work?Well, when you work out—or perform any type of movement, for that matter—your body uses a substance called glycogen to power that movement. Your body gets glycogen through carbohydrates—basically, when you eat carbs, your body breaks them down into glucose and stores them as glycogen, says registered dietitian Tanya Zuckerbrot, author of The F-Factor Diet and creator of F-Factor. When you use up your glycogen stores, your liver secretes a hormone called ghrelin, which tells your brain it’s time to chow.If you go into a workout with already-low glycogen stores, exercising can further deplete them and trigger the release of ghrelin. If your glycogen stores are really low, this can translate into that I-need-to-eat-something-ASAP feeling.
If you go into a workout with already-low glycogen stores, exercising can further deplete them and trigger the release of ghrelin. If your glycogen stores are really low, this can translate into that I-need-to-eat-something-ASAP feeling.Another possible explanation for post-exercise hunger pangs is dehydration. When you exercise and sweat, you lose fluids and thus experience feelings of dehydration, says Zuckerbrot. Because the symptoms of dehydration are similar to those of hunger—like feeling tired, weak, and shaky—you can easily confuse the two. For that reason, not sipping enough H2O before, during and/or after a sweat session can trigger hunger-like symptoms, explains Zuckerbrot. In other words, you may think we’re extremely hungry after a sweat sesh, when in fact, you’re actually dehydrated.