5 Reasons You Should Never (Ever) Pull an All-Nighter
Even one up-all-night escapade can do more damage than you think. This is your body on zero sleep ... and it ain't pretty
When you stay up for 24 hours (or more), your leptin levels plummet and ghrelin levels increase, which sends both an "I'm hungry" signal to your brain and a message to stop burning those calories. The end result: unhealthy binging (because you're not eating broccoli at 2 a.m., you're eating cheese puffs dipped in frosting) and a sluggish metabolism. Sleep deprivation and its ties to appetite regulation has also been linked to disrupting the way your body regulates blood sugar and processes sugar into energy. Pull an all-nighter and it's hard for your filtration system to filter out glucose -- so much so that your kidneys start to look like a 60-year-old diabetic's, your insulin resistance goes up ... as does your risk of type 2 diabetes.
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