Why does hunger come and go in “waves”, even if you don’t eat anything?

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For example if you’re intermittent fasting or water fasting, and the hunger comes and goes in waves as opposed to just getting hungrier and hungrier by each passing hour. How come? I do intermittent fasting and my periods of hunger are brief. You’d think the longer I go without eating, the worse my hunger would get but instead, I just get these brief periods of hunger and they eventually disappear, as if I had already eaten.

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15 Answers

Anonymous 0 Comments

Related: why does eating nothing make you nauseous?

Anonymous 0 Comments

Exact same thing with me, I don’t eat until 3pm and stop at 9pm. I don’t get hungry until about 10 for only about an hour and then I feel fine

Anonymous 0 Comments

Very simple answer. These waves are controlled by the naturally occurring hormones in your body Ghrelin and Leptin.

Anonymous 0 Comments

If I were to explain this to a five year old, I’d say that your body makes you more hungry when you start eating so it tricks you into eating enough not to be hungry again for a while. Eventually your body expects to do that process if you tend to eat at the same time every day. If you miss a meal, your body will send the hunger signals (the hormone Ghrelin) for a bit then stop sending signals.

One way to hijack this is to water fast for 48ish hours at which point your body will stop sending hunger signals all together and you can choose when to add food to your daily routine.

Anonymous 0 Comments

So does sleep, no? I get a wave everyday at 11 PM and then once I conquer that, I sleep at like 4, the next wave.