If you work on Wall Street, chances are you will at one point pull an all-nighter.
Sorry.
Here's how it works. You're on an important project, and your boss realizes there's a mistake in the data, or the client pushes up a meeting, or you're just crashing on a deadline.
Cancel your dinner with your friends. You're about to put your body and brain through something awful.
Spending the night deep in excel instead of deep under your covers isn't just killer for your social life, it also hurts your body — here's what you need to know about how.
It stresses you out.
Your body elevates its levels of cortisol, also known as "the stress hormone" when you don't get enough sleep.
It makes you hungrier and fatter.
There are two opposing hormones in your body that regulate your appetite — leptin and ghrelin. In individuals who lack sleep, the body produces less leptin and more ghrelin which makes you hungrier.
Scientists from Stanford and the University of Wisconsin noticed that after one night of little to no sleep, a person's body mass index increases.
It destroys your ability to concentrate.
According to study in the US National Library of Medicine and National Institute of Health, sleep deprivation affects your brain's frontal lobes, slowing down their communications.
In terms of concentration that means you are impairing your spacial, auditory and visual attention. And forget about doing anything monotonous for a long period of time.
See the rest of the story at Business Insider