seatbelt47 via flickrEspecially in your early years as an analyst, all Wall Streeters can expect to pull all-nighters.
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.
Either way, time is of the essence, you have to finish a task ASAP, and you're not going home.
Obviously, 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 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.
It hurts your working memory.
Working memory can be divided into four subsystems: phonological loop, visuospatial sketchpad, episodic buffer and central executive. The phonological loop is assumed to temporarily store verbal and acoustic information (echo memory); the sketchpad, to hold visuospatial information (iconic memory), and the episodic buffer to integrate information from several different sources.
All of those are connected to how well your frontal lobe works, and that takes a hit when you don't sleep.
It makes you "emotionally irrational."
According to a UC Berkeley study, sleep deprivation boosts the parts of your brain that are associated with depression and cause you to overreact to negative experiences. It also hampers the prefrontal lobe (as you know) which helps to regulate emotion.
Continued sleep deprivation can put you at risk for diabetes.
The American Diabetes Association says that lack of sleep can increase blood sugar levels by decreasing insulin production.
It makes it easier for you to get sick and takes longer recover from being sick.
Studies show that sleep deprivation suppresses the immune system and impairs our fever response.
It can even make us less responsive to vaccines (from WebMD):
John Park, MD, a pulmonologist who specializes in sleep medicine at the Mayo Clinic in Rochester, Minn., agrees. “We know that our immune response is suppressed when we are sleep deprived and that we develop less antibodies to certain vaccines if we are sleep-deprived,” Park says. “It takes longer for our body to respond to immunizations, so if we are exposed to a flu virus, we may be more likely to get sick than if we are well rested when vaccinated.”
A lot of people use this to stay awake...