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28

In short, and according to the WGBH Educational Foundation and the Harvard Medical School Division of Sleep Medicine: Lack of sleep can, in the short term, "affect judgment, mood, ability to learn and retain information, and may increase the risk of serious accidents and injury" In the long term, it may "lead to a host of health problems including obesity, ...


15

I would also add that if you're consistently getting 4-5 hours of sleep (instead of about 8) then it's counterproductive for studying. Aside from affecting your ability to concentrate, there's also the effect on memory, especially memory consolidation for instance. As a grad student, I know that it's a constant challenge balancing sleep and studying, but I ...


15

For most people, it is better to sleep with a pillow according to the latest research. Sleeping without a pillow increases interocular pressure which is considered a risk for glaucoma patients. Sleeping on your side without a pillow increases your risk of osteoarthritis in the neck. If you sleep on your side, your cervical spine bends to the bed. This ...


13

Although the other answer provided some general tips about sleep hygiene and noted that melatonin might be helpful, your question actually touches on an aspect of circadian biology that has been very well worked out, and a more specific answer is available. The question boils down to: How can I advance my circadian phase by 3 hours? This is a question ...


11

Since melatonin is secerned by many glands (pituitary, thyroid, pineal, adrenals, and gonads), it might be a malfunction of one of these. I am not yet a physician, but I suggest you to try to properly address underlying causes. Maybe melatonin supplements are just a palliative which helps controlling symptoms of something else, like an adenosine lack. That ...


11

Modern Science According to the National Heart, Lung and Blood Institute, sleep is certainly needed, that too quality sleep for certain hours. 4-5 hours seems less to me. It says -- Studies show that a good night's sleep improves learning. Whether you're learning math, how to play the piano, how to perfect your golf swing, or how to drive a car, sleep helps ...


11

First generation H1-antihistamines (such as diphenhydramine = Benadryl) are well known for their sedative effects explaining their limited use in patients with allergic rhinitis. Several pharmacological studies have shown that diphenhydramine crosses the blood brain barrier and produces CNS sedation. Two studies have (partly) addressed your question ...


10

The Apnea-Hypopnea Index (AHI) is a measure of severity in obstructive sleep apnea. It is calculated as the number of times per hour that the airway partially or completely collapses, associated with a drop in oxygen levels. Partial collapse is labeled a hypopnea, whereas complete collapse is labeled an apnea. CPAP treatment uses air pressure delivered ...


9

In healthy patients, a circadianic rhythm of urine excretion has been observed. In average, it depends on age, sex and total (consumed) fluid volume. Several factors contribute to this rhythm: The rhythm of glomerular filtration rate of the kidneys. They decrease filtration of urine at night. Many of the hormones which influence renal urine production - and ...


8

Like all things too much of anything is bad for you. As a designer working in the tech industry for over a decade, here's a few things I experienced and that might (I hope not) impact you. wrists from over use of keyboard and mouse circulation problems from being seated for too long eye sight posture problems social effects of not going out and socializing ...


7

Well regular sleeping during the day might damage health. Try avoiding it if possible as research has been conducted which suggests that there is a linkage between irregular sleep and hormone production. Evidence also suggests that lack of sleep won't do you as much damage as irregular or day sleep. I suggest try changing your profession. If that isn't ...


7

This seems like a common sense type of question (why don't you sleep on the floor when there's a sofa available, and why don't you sleep on a sofa when there's a comfortable bed available?), and it turns out it is. According to a small study done recently in a sleep laboratory, Information concerning the stages of sleep is one of the most important clues ...


7

If you eat a lot of food, your stomach will be full. And if you lie down immediately after that, your horizontal posture would put the food (and the acid) in such a way that it puts lot more pressure on the lower esophageal sphincter. If you are a patient of acid reflux disease (or if you have a comparitively weak sphincter and are pre-disposed to develop ...


7

You should keep an eye on the sleeping environment's temperature and restrict the amount of light entering the space you sleep in. Eye masks are a cost-effective solution to reducing excessive light from entering your eyes. And more generally speaking, your level of comfort when you enter the bed is a good indicator of how well you can rest in that space (...


7

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 ...


6

Body's biological clock Credits: A circadian rhythm at Wikipedia There are two main hormones which plays important role in sleep. Melatonin (also called a youth hormone) which is produced at night which plays a fundamental role in your body's biological clock (it governs the entire sleep and wake cycle). Serotonin (“feel good” hormone) which affects ...


6

We should clarify some terms here. Scoliosis is a deformation, but Lordosis and kyphosis are not. The latter two are normal structural parts of human spine. Back to your question, we don´t know. Altogether the pathogenesis of scoliosis is poorly established and mostly unknown. In adolescent scoliosis, it seems that presence of scoliosis is mostly ...


6

In long term studies, the effects have been mixed but mild. In hemodialysis patients, after about six months - melatonin no longer seemed to have physiologic effects but could still be detected at elevated levels in salivary samples suggesting the body adapted to it. Long term (six months) melatonin in mice improved spatial learning and memory and also ...


6

"Snoring occurs during sleep when soft tissue in the upper airway vibrates as you breathe." (1) Typically, this will happen because the passage way for air narrows and the air rubs against the tissue in passing, similar to what happens to your lips when you blow a raspberry. It's actually common in men, but can also occur frequently in women, especially ...


6

"How to know if (or when) I fall asleep, and not merely just lying there doing nothing?" Sleep Retrograde Amnesia: Retrograde amnesia refers to the loss of memory for things preceding a certain event. When we talk about retrograde amnesia in the context of sleep, this event is sleep onset. You not remembering has to do with your short term memory ...


6

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 ...


6

Remedies to control snoring: Pillows. There is a pillow called the SONA pillow its FDA approved and is proven to work. The study was performed to determine the ability of a new inclined pillow to treat snoring and obstructive sleep apnea syndrome. The SONA Pillow is a triangular pillow with space to place your arm under the head while sleeping on ...


6

Studies have linked oversleeping with Cognitive impairment Depression Increased inflammation Increased pain Impaired fertility Higher risk of obesity Higher risk of diabetes Higher risk of heart disease Higher risk of stroke Higher all-cause mortality You can find the detailed article here: http://www.webmd.com/sleep-disorders/guide/physical-side-effects-...


6

As an insomniac, I've looked into this myself, and found the following to be natural sleep-inducing foods (in no particular order): Cherries -- The tarter, the better. They have melatonin!! And they are great for desert. Chamomile Tea -- apparently it contains the chemical glycine, which helps relax muscles and nerves. Honey -- the natural sugar of honey ...


6

Sleep Hygiene. Learn it, try it, and see if it resolves your issue. I've answered this similar question before. Insomnia has different causes. The most common, outside of poor sleep hygiene, is anxiety or depression. That's something else to consider. I recommend seeing your doctor in general to discuss it, they can help guide you whether there are any ...


5

Sleeping in a prone position is not bad. However there are some complications of it that can be negative. A simple example is drooling. A more important problem with sleeping in a prone position is poor posture. Most people don't have a bed like a chiropractic table that allows them to breathe with their face straight down while maintaining a neutral spine. ...


5

This question can be approached from many levels. There are many physiological factors having influence to sleeping of which circadian rhytm is one of the most important. Messing with your circadian rhytm would take guru's strength of mind. In a population level I would say it is not possible. I have two aspects for this. 1) In year 2015 we are able to ...


5

I am focusing on one important health issue with respect to sleep position. Obstructive sleep apnea or apnoea (OSA) is a common condition where person has excessive snoring and disturbed sleep at night. These persons may also have headaches in the morning, daytime sleepiness, chronic fatigue or exhaustion, impaired functioning and emotional disturbances. ...


5

Most of the time it is critically important to realize that sleep deprivation is very often due to unrecognized sleep disorders. After a typical night's sleep, you may not feel restored and refreshed and be sleepy during the day, but be totally unaware that you are sleep-deprived or have a sleep disorder. You might tend to think, "It's just the stress of ...


5

This is currently a researchable topic in neuroscience. Actually its not about light sleep or deep sleep or resting.Neuroscience prefers to describe sleep in the context of the immunity into mainly two stages: REM(Rapid Eye movement)sleep and non-REM. Every sleep cycle occurs broadly in the given stages: wakefulness ->rest ->non REM->REM-> non REM/...


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