Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange
Join us in building a kind, collaborative learning community via our updated Code of Conduct.

Questions pertaining to patterns of sleep.

0
votes
1answer
18 views

Waking up early at 5am [on hold]

I have been waking up in the morning at 5am. This is a very good thing because it allows me to get to work early and have a productive day in general. My problem, however, is feeling exhausted. I wake ...
2
votes
0answers
45 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?
0
votes
0answers
21 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 ...
2
votes
0answers
22 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
votes
1answer
47 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 ...
4
votes
1answer
73 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 ...
2
votes
0answers
9 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 ...
2
votes
0answers
31 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?
2
votes
1answer
28 views

What happens to melatonin and the circadian rythm when one adopts biphasic sleep cycle?

I have read that the sleep cycle is driven by melatonin, and that there is a natural 24h "sine-wave" of melatonin, where during the day, melatonin is at low levels, while during the night, it is at ...
4
votes
0answers
35 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 ...
4
votes
2answers
78 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
votes
1answer
101 views

Naps are extremely effective for me. Any explaintion?

My naps are very, very short and tend to last between a few seconds to a few minutes(this was confirmed both by other people who saw me and by measuring the time). When I wake up I feel very ...
2
votes
0answers
103 views

How does the heart rate change during REM and non-REM stages?

I read different references and I understand that the average heart rate during sleep decreases by some beats per minute. The heart rate is slower in non-REM stage than REM but I found no measurements ...
1
vote
0answers
15 views

How can I evaluate my sleeping habits based on a Fitbit Charge HR (or similar)?

The Fitbit Charge HR allows one to track their sleep by continuously monitoring motion and heart rate. It uses algorithms to infer when its user falls asleep and when they wake. The next morning, ...
1
vote
0answers
33 views

Murky&aggitated final stage (last hour) of sleep

I am posting this hoping that others who are having similar sleep disorders will maybe want to share their experience. I apologise for what seems to've become a very long thread - I tried to stick to ...
3
votes
4answers
86 views

How to get to sleep half-an-hour / an hour earlier than the day before?

Please only state ideas that have personally helped you, in your daily experience, not a hypothetical answer from a website, that might be helpful. I have had major problems with sleep at least since ...
1
vote
1answer
19 views

Do hearing-impaired individuals need more sleep?

I'm a hearing-impaired individual, but because I was born with this disability, I never researched it because it was never "new" and "exciting" to me, but a friend recently informed me that hearing-...
1
vote
0answers
48 views

Teenagers sleeping patterns and parents actions (force or let-go)

My daughter (15 years old) is very active and full of energy until she hits the sac. After five minutes she's out. This represents the perfect behaviour for bedtime process. But, she does this at 1:00 ...
3
votes
2answers
169 views

Why do I feel more tired when I sleep in?

I almost always feel more tired after sleeping in. For example, If I go to bed at 12:00am and wake up at 6:00am to an alarm, I feel somewhat tired, but after showering and eating breakfast, I ...
2
votes
0answers
32 views

Why do we sleep more in certain countries than in others?

I moved to Canada 6 months ago and as soon as I got here I noticed that my sleeping habits had changed dramatically. Indeed, I sleep much more than I used to. I've always been insomniac and so I used ...
1
vote
0answers
44 views

What are some potential causes of idiopathic hypersomnia?

I have been using Google scholar to try to find information about idiopathic hypersomnia. I am struck by the fact that no papers even attempt to provide a pathology (or possible pathologies). Clearly, ...
5
votes
1answer
197 views

Does less sleep lead to weight loss?

Sleeping less at night time leads to sleep at morning. Does this less sleep lead to weight loss ?
4
votes
0answers
78 views

Does Blue light filters in smartphones really work?

Since this is more of a health related question, asking this here is preferable than other sites. So, does such apps really do not disturb the production of melatonin? Does Blue light filters in ...
1
vote
0answers
17 views

What is known about the health effects on people who wake up super early (1am) and sleep well before sunset? [closed]

I have a job which requires me to get up at 3 am. I am considering doing my gym routine before even then. I am interested therefor to know the health effects of such an odd schedule. I expect to ...
1
vote
0answers
17 views

Does maintaining your home's time zone, while travelling, enable you to evade jet lag?

Suppose that: You are leaving Home, travelling to Destination for 1-14 weeks, and then returning Home. Destination time is behind Home time by ≤ 6 hours (contra this). Obviously, this question is ...
8
votes
1answer
172 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
votes
0answers
93 views

Any advice to sleep 7-8 hours?

I have 24 years, I am in this forum for suggestions, I've never had trouble sleeping, but last year I slept badly because I didn't prepare well for tests and I almost always had to study the last days ...
6
votes
2answers
166 views

Is setting your alarm for a long duration at a lower volume a good way to ensure you wake up in light sleep?

I usually set my alarm really loud so that I will definitely wake up. Usually that is accompanied by disorientation, headaches, etc. However, I read about 'completing the sleep cycle' and that it ...
-1
votes
2answers
165 views

Are there permanent health effects from working the night shift for 6 days? [closed]

Could there be any permanent health effects form working 12 hour night shifts for 6 days in a row (10 pm to 10 am)? Especially on the brain?
7
votes
2answers
73 views

Can humans acclimate to longer or shorter days?

After watching The Martian, I had falsely assumed that a day on mars is significantly longer than on earth, but it is actually only 40 minutes longer. However, the question for me still remained: Can ...
9
votes
1answer
250 views

How much sleep is too much?

As I have understood from reading stuff on the internet and talking to people, too little sleep can have very serious health problems and you need to sleep at least 6 hours every night. what I don't ...
4
votes
0answers
138 views

What factors affect sleep propensity?

What environmental and personal factors affect the amount of time it takes to fall to sleep? How can some people go to bed in 5 min where others take an hour? Some factors I’ve thought about include: ...
2
votes
1answer
196 views

how can I get my sleeping cycle to normal again?

in my job I have no official known work hours ,when they call I have to go to work no matter what hour it is (should've red the contract before I signed it right :-D ),this make me lose my sleeping ...
13
votes
2answers
277 views

Reversing sleep cycle

I have been a nocturnal for some period of time and thus altering the sleep cycle seems difficult i.e. moving back to the normal 10 to 5 sleep cycle. What can be done to revert back to the normal ...
10
votes
1answer
70 views

Are there any hazards associated with changing sleep schedules (shift work)?

One of my friends works on rotational shifts (if she works a week during the day, another week she needs to work during the night). Her sleeping cycles are changing continuously. Will this cause any ...