These dark circles can likely be attributed to vascular network prominence caused by hollowing of the contents of the orbital rim, pigmentary changes in the periorbital area caused by extravasated hemoglobin and its breakdown products (bilirubin and biliverdin), or to visibly accumulating fluid in the lower eyelid due to local processes such as atopy or ...
Caffeine Absorption Caffeine Capsules - 200mg - 84-120 minutes
So maybe you took the caffeine, were already tired so you napped(2 hours or 120 minutes) just as it was kicking in full blown and then woke up a little later with the effects already in action, but not sleeping the full amount.
Since the capsules take longer to kick in than liquids and ...
Flatulence, which is likely associated with abdominal distention and thus some discomfort, can disturb sleep.
Functional Abdominal Bloating with Distention (ISRN Obstetrics and Gynecology, 2012)
Tips for a Quiet Tummy, Restful Sleep (WebMD)
Well, in order to avoid sleeping while studying, just follow this steps below:
1.Switch the Lights On. Don't even think about studying in just the lamplight at night.
2.Sit in Front of a Table.
3.No Heavy Meals.
4.Move Around in Your Room
5.Read out Aloud While Studying
Restless Legs Syndrome (a.k.a. Willis-Ekbom Disease) is not rare! What it is is woefully under-diagnosed. Not that you asked, but, although estimates of prevalence vary widely depending on the criteria used, 5-8% of people in Europe/U.S have clinically significant RLS/WED, with women affected about twice as often as men.
Now to what you did ask: treatment ...
I have found an article published in November 2017 that states:
"Evidence supported consumption of ≤400 mg/day in adults is not associated with overt, adverse effects."
Link to the article:
You can see the meaning of 400 mg of caffeine at this webpage:
The answer is "really badly." There are several drugs to treat ADHD that students are taking to improve focus and study all-nighters before exams. But, this is a really unhealthy use of those medications. You most probably will eventually crash (as you would say) because you have to. This is your body's way of recovering from the damage you are imparting ...
AFAIK: It's pretty normal as long that you don't have trouble getting back to sleep.
Try to google 'sleep cycles' to learn more about how the brain functions. Basically we have, I recall, 4 stages of sleep. Stage 4 is what is known as REM sleep, and this is where vivid dreaming happends, stages 3 is deep sleep and so on ...
The point I'm getting to, is that ...
There is no evidence:
"Despite a potential bit of miscommunication about the technique's effect on insomnia, there’s one thing I can be certain about – there doesn’t appear to be any reliable evidence that the 4-7-8 breathing method works."
You should not worry about having a body that functions in a way that is a bit outside of the norm if this doesn't cause problems for you. If our distant ancestors had the intellectual capability to worry about such things, we could never have evolved to become humans. A healthy human being can after all also be considered as a pathological version of ...
This answer is more speculative than I like my answers here to be, but I think it still has some value.
It is highly unlikely that a single six-day period of working the night shift will have a permanent negative effect.
The problem is, this can't really be proven, and that is twofold.
First, pretty much all studies on the subject are either done on ...