Questions tagged [sleep]

Questions about sleep disorders, like circadian rhythm sleep disorders, or the general topic of sleep as it relates to health.

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2
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1answer
31 views

Why is it harder to get up when forced to wake up?

I only noticed this for quite a while now but never considered it much of a problem but I noted that when I'm forced awake (i.e. someone wakes me up) I feel significantly drowsier versus when I wake ...
2
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0answers
59 views

Sleep hygiene in a single-room living space

The principles of sleep hygiene in treating insomnia (one example) include addressing the cognitive links between the bedroom and wakefulness - advising that one leave the bed/bedroom if one can't ...
6
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1answer
92 views

Does caffeine have any distinct biological effects to adrenaline?

Adrenaline usually is a "panicking response" and should, as far as I understand it, supresses any feelings of tiredness. However, someone I know has agoraphobia, which when triggered releases a lot of ...
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0answers
37 views

Is there a long-term risk to sleeping in a hammock regularly?

There seems to be very little research on long-term health or spine drawbacks to sleeping in a hammock (anything besides individuals informal blog-type posts). Just one study about sleeping in a ...
2
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0answers
55 views

Why do we sleep? [closed]

I was reading many things about sleep. But I am very curious about knowing why do we sleep. Is it only for trashing out toxic materials or is it anything else?
6
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3answers
567 views

How to avoid back pain while sleeping? [closed]

I usually experience back pain while I sleep. I was wondering if there is any way to prevent this. Are there specific sleeping positions that can prevent back pain? Should I use different types of ...
10
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1answer
5k views

Can wearing retainers at night affect sleep quality?

Besides being uncomfortable, does wearing retainers at night cause any effects like sleep apnea? I'm wondering this because I've woken up with dry mouth multiple times after sleeping with my ...
3
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0answers
95 views

Why can't one “catch up on” sleep?

I've repeatedly heard it said by sleep experts that one cannot "catch up" on missed sleep.[citation needed] The best explanation of that statement I've heard so far is that a lack of sleep has ...
8
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1answer
179 views

Can oversleeping be harmful to overall health?

Is it worse than undersleeping, especially for healthy development? Does it have any benefits? I would like to know both physical and mental effects (or diseases?).
2
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1answer
51 views

Evening lighting that doesn't work against sleep cycle

I have read that blue light entering the eyes is the channel through which light influences the sleep cycle. (I am not sure if this is correct, please do tell me if it is or if its a myth or an ...
1
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1answer
1k views

How much water weight is it normal to lose while sleeping?

When you sleep, you sweat out and breathe out some water, but how much is normal to lose, assuming you're not actively trying to make yourself sweat?
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0answers
29 views

Is it good for health to regularly do a nap and divide sleep into two?

I am trying to adapt to biphasic sleep. I would ideally do something like 00:00 - 06:30 and a nap from 15:30 to 17:00 (Or the sleep amount that I require to fulfill my sleep needs). I have been ...
7
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1answer
110 views

Coffee for solving sleep problems?

In this post I asked whether Coffee use could cause an increase in adenosine levels as a result of the body’s adjustment to lower adenosine receptor activation. An answer stated that coffee use ...
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0answers
43 views

Normal Sleeping Heart Rate Range

I recently got a heart rate tracker and I've noticed that when I sleep my heart rate consistently spikes fairly high. It has reached 165 bpm before, but most times it's under 150. That seems a bit ...
4
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1answer
64 views

Does caffeine boost adenosine buildup?

Caffeine blocks adenosine receptors, thereby reducing the effect of adenaline. It seems plausible to me, that blocking adenosine receptors should (perhaps ironically) increase the rate of adenosine ...
3
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0answers
38 views

Why do teenagers produce their melatonin later than everyone else

Does anybody have a theory why this change happens to teenagers? Everything I have read agrees it does happen, but nobody seems to suggest a reason why this has evolved. Biology’s cruel joke goes ...
4
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1answer
90 views

When should we sleep?

Is sleeping every day from 4 am to 10 am is equivalent to sleeping from 12 to 6 am at night? Also, what is the best time to go to sleep at night? And how many hours of sleep is necessary for good ...
3
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1answer
280 views

B12 deficiency and insomnia

I suffer from insomnia. Recently, my treating physician prescribed me vitamin B12 but I don't really understand why and I am wondering whether this is due to my insomnia. So my question is: does ...
2
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0answers
22 views

What are the effects is a person has a regular amount of Deep Sleep and REM sleep but a lot less Light Sleep?

It's commonly said that it's important that we get enough total sleep time. I however wonder how important the time in Deep Sleep and REM happens to be. What are the effects when a person has a ...
6
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1answer
145 views

How to avoid snoring?

If someone is suffering from snoring for around 5 years, are there some remedies to avoid or control snoring? Any help will be greatly appreciated.
1
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1answer
228 views

Relationship between sleep deprivation and itchiness

Obviously, itchiness can cause sleep deprivation to human as shown in many clinical cases. But I want to know if a sleep deprivation can cause itchiness or at least confuse our brain of spotting itchy ...
7
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1answer
132 views

Should eating before bedtime be avoided if someone wants to lose weight?

I have read many contradictory articles regarding eating before bedtime for someone trying to lose weight. Here some examples: http://www.nytimes.com/2011/05/17/health/17really.html?_r=4&adxnnl=1&...
2
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0answers
37 views

What effects can be expected for a 15-year old girl getting 4-5 hours of sleep per night? [closed]

Say a 15-year old girl on average falls asleep around 3am and wakes up around 7am, over a very long period of time. What short-term and future mental/physical effects can be expected?
7
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2answers
8k views

How to reduce apnea/hypoapnea events?

When using a machine (such as CPAP, APAP, BiPAP) to help control sleep apnea, is there anything that can be done to help lower your AHI (apnea-hypoapnea index; the number of sleep apnea events per ...
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0answers
83 views

Is it possible to “sleep” while aware and cognizant?

I have a scenario, but before I begin, I would like to clarify that this is not Sleep Paralysis, nor Lucid Dreaming, nor what I understand a Trance to be. Let's say that someone decided they needed to ...
10
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1answer
154 views

Nasal congestion on wakeup in healthy individuals vs. vasomotor rhinitis sufferers

How common is it for healthy individuals to wake up with one nostril congested to the point where there is no airflow through that nostril, and respiration takes place solely through the other nostril?...
4
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2answers
90 views

Sleeping 6 hours discontinuously every day

During the last year I think the 90% of the times I can't sleep for more than ~4.5 hours continuously (which corresponds to ~3 cycles), then I'm awake for ~30 minutes trying to sleep, but if I fall ...
3
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0answers
30 views

How effective are digital blue-light filters for secretion of melatonin & getting to sleep?

Programs like f.lux (Desktop Application) and features like Night Mode (iOS) claim to reduce the blue light being emitted from a digital screen to improve sleep. Is this true, and if so, how effective ...
28
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1answer
92k views

Is it better to sleep without a pillow?

I have read several web pages that mention the potential benefits of sleeping without a pillow. Examples: http://www.newhealthadvisor.com/Sleeping-Without-a-Pillow.html Is Sleeping Without a Pillow a ...
2
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1answer
49 views

Prevention of numb limbs caused by sleep posture

About a month ago I woke up to my right arm completely numb forearm onwards. It was completely dead and I could swing it around. It took a few minutes for it to come back alive and I didn't care about ...
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0answers
26 views

Authoritative Source on Sleep Requirement

What is the hours of sleep required for someone over 70. My Dads Dr (Internal Medicine) said at least 5 hours, yet Internet sites say 7 to 8. Which Internet site is authoritative source for sleep ...
2
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0answers
29 views

How can I avoid snoring when not sleeping at home?

I have the nasty habit of snoring quite loudly while sleeping. At home, I have a special pillow that reduces my snoring by about 90%. Now I am travelling abroad, and forgot my magic pillow. This is ...
1
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0answers
30 views

how to stop wrinkles on face when sleeping on stomach

How to stop wrinkles on face when sleeping on stomach ? or Is this a myth that we get wrinkles if we sleep on stomach ?
1
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1answer
136 views

Salt and bad sleep

I've been having more and more problems with salt for a few years, especially late before I'm about to sleep. Eating out, beers at a pub with the associated salty nuts and food or a barbeque at home ...
5
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1answer
120 views

What type of food (herb, root) helps with sleep?

Right now it's 3am local time. Ideally I'd like to follow a protocol that would put me into sleep. I've just had a juicy pear - it contains sugar that gives energy etc... From that standpoint it ...
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0answers
36 views

GAD67 Effect on Sleep

Glutamate decarboxylase enzyme converts Glutamate into GABA. Also increase in gaba levels decrease gad activity! why does increased gaba levels decrease GAD activity?
4
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0answers
58 views

What is sleep pressure?

What is sleep pressure? I was reading an article on melatonin, and one of the commenters said something about 'sleep pressure'. I did a web search to see what it was, but web searches don't often ...
0
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1answer
122 views

Why do I feel dehydrated when I wake up very early? [closed]

Occasionally I have to get up very early for flights, surveys etc and only get a couple of hours sleep. As soon as I wake up, my throat feels completely dry and I am extremely dehydrated. The only way ...
1
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1answer
124 views

Does Clinical death experience and sleep paralysis experience the same? did anyone die due to sleep paralysis?

Does Clinical death experience and sleep paralysis experience are the same? did anyone die due to sleep paralysis?
7
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1answer
231 views

Can sleeping too much damage the brain and heart?

I heard that sleeping long hours can damage brain functions and harm the heart. Is that true?
-1
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1answer
42 views

What is the name of this disease, it's cause and cure? [closed]

I suffer from the following condition: Mainly in the rainy season sometimes from being asleep I wake up. But neither I am able to open my eyelids, nor move any body part. But I am fully conscious. I ...
4
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2answers
618 views

How to test EMF interference in my bedroom for sleep impact?

I've been dealing with poor sleep for quite awhile (over a year) and one of my suspicions is EMF interference in my room. I've tried unplugging everything at night, but didn't notice a significant ...
3
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0answers
42 views

Safe way to increase salivation at night/during sleep

While sleeping salivation is usually decreased. If you are sleeping and have a blocked nasal tract (rhinitis, allergies) or just an open mouth you further dry out your mouth. Other causes might also ...
6
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3answers
5k views

How to know if ( or when) I fall asleep?

Sometimes when I wake up from a nap, I don't even know whether I fell asleep in the first place. As a person who doesn't take naps as a habit, I need to take efficient naps when I'm tired and need ...
5
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1answer
132 views

Can caffeine induce sleepiness instead of wakefulness?

I notice that when having slept for a little bit of time and I am drinking caffeine, I may get instantly alert, but after few minutes after drinking the coffee, I still feel extreme urge to sleep! ...
1
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1answer
56 views

Is there a mental disorder that causes people to do things in their sleep?

As the title says, what can cause high amounts of activity during one's sleep? Activity like: switching on lights, and walking around outside.
2
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1answer
44 views

How to make myself sleep on my side?

Following a sleep study, I've been diagnosed with mild, positional obstructive sleep apnea. One of the clinic's recommendations is: The patient should avoid sleeping supine given non-supine AHI is ...
2
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1answer
91 views

Effects of Modafinil

As someone who suffers from chronic insomnia and often has to get things done during the day without much or any sleep at all, I would like to know from those experienced what the effects are of ...
1
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0answers
71 views

Australia: Pulse oximeter for overnight sleep study

I'm looking for a pulse oximeter that can record data overnight and display the results on a Mac laptop or Android app. This video describes what I'm after: Oximiter for Blood oxygen testing: Sleep ...
3
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0answers
67 views

How often can we pull an all-nighter until the body is irreversible damaged?

Many jobs in medicine, science, and economy require unsuitable commitment especially for early-career people. This can often lead to extension of the daily work far into the night. Assume a 30-year-...