Sleep is a naturally recurring state of mind and body, characterized by altered consciousness, relatively inhibited sensory activity, reduced muscle activity and inhibition of nearly all voluntary muscles during rapid eye movement (REM) sleep, and reduced interactions with surroundings. It is distinguished from wakefulness by a decreased ability to react to stimuli, but more reactive than a coma or disorders of consciousness, with sleep displaying different, active brain patterns.
Sleep occurs in repeating periods, in which the body alternates between two distinct modes: REM sleep and non-REM sleep. Although REM stands for "rapid eye movement", this mode of sleep has many other aspects, including virtual paralysis of the body. A well-known feature of sleep is the dream, an experience typically recounted in narrative form, which resembles waking life while in progress, but which usually can later be distinguished as fantasy. During sleep, most of the body's systems are in an anabolic state, helping to restore the immune, nervous, skeletal, and muscular systems; these are vital processes that maintain mood, memory, and cognitive function, and play a large role in the function of the endocrine and immune systems. The internal circadian clock promotes sleep daily at night. The diverse purposes and mechanisms of sleep are the subject of substantial ongoing research. Sleep is a highly conserved behavior across animal evolution.Humans may suffer from various sleep disorders, including dyssomnias such as insomnia, hypersomnia, narcolepsy, and sleep apnea; parasomnias such as sleepwalking and rapid eye movement sleep behavior disorder; bruxism; and circadian rhythm sleep disorders. The use of artificial light has substantially altered humanity's sleep patterns. Common sources of artificial light include the screens of electronic devices such as smartphones and televisions, which emit large amounts of blue light, a form of light typically associated with daytime. This disrupts the release of the hormone melatonin needed to regulate the sleep-cycle.

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  1. K

    Referral How do you make money while you sleep

    Learn how to generate money online in the simplest method possible. The honeygain application is a fantastic way to make a lot of money. It's a program that allows you to generate money from your phone or computer, and it's a guaranteed and dependable way to make money for the rest of your...
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    Rich People Don't Sleep 8 Hours A Day Steve Harvey

    “Rich people don’t sleep eight hours a day,” Harvey explained to his audience. “That’s a third of your life. It ain’t but 24 hours in a day! You cannot be asleep eight hours a day! You can’t live in L.A. and wake up at 8 o’clock in the morning. It’s 11 o’clock on the east coast. The stock market...
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    Me just trying to sleep

    My sleep paralysis demon:
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    Help Why auto crash and auto sleep my pc while playing?

    Why auto crash and auto sleep my pc while playing ready or not game Specs Ryzen 3 3200g 16GB Ram Rx 570 4GB
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    Sleep kanalang

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    Lucid Dreaming and Sleep Paralysis

    Does anyone of you have experienced any of these well-known sleep phenomena? I had one experience of both in the same dream, which i will share. If you do, it would be appreciated if you share your experience too. Thank you. I hope you enjoyed reading.
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    Help I let my male best friend sleep in my boyfriend's spot in the bed when he's not home

    Guys share ko lang po. Judge all you want. My boyfriend doesn't leave often, but whenever I get the chance my best friend sleeps on our giant king size bed with me. I always wash the sheet after. So there's no way my boyfriend would know. I love getting the chance to cuddle up to him, but my...
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    Sleep well po

    Sleep well po 😆
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    Help LENOVO LEGION 5i Sleep mode

    Happy New year mga kaPHC. Ask ko lang may alam naba kayo solution ung sakit ng lenovo legion na pag nagsleep mode pag bukas mo di na mag open need mo na ishutdown kasi ayaw na magbukas ng screen?
  10. V

    Sino dito naaadik sa sensation ng Sleep Paralysis?

    Konting istorya muna kung kelan ko na experience ang unang SP ko. Ngyare ito nung 3rd yr high ako kaya medyo matagal na yun. Unang naramdaman ko talaga is biglang tumahimik na lang ang paligid at parang sarili ko lang yung maririnig ko. Pikit ako at patulog na ako nun tas naramdaman ko yung...
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    Sleep well.jpeg

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    Meditation: Peaceful Sleep

    Hidden content Greener than your mind Likes/Reacts and Thanks will be much appreciated.
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    Sleeping problem

    Guys, every days akong walang tulog for a week now. Nakapikit na ko ng ilang oras pero di pa rin makatulog. Bakit kaya nangyayari to?
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    Sleeping in morning wake up in night

    Mga sir may bad effect po ba yung ganyang habit sa umaga natutulog tapos sa gabi gising pero 8hrs pa din yung tulog
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    panu po bamakatulog ng maaga? lagi na lang late nakakatulog kahit sobrang aga humiga. any suggestion po?
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    8 Tips to help you fall asleep faster.

    1.Stick to a schedule When you allow it to, the human body maintains natural rhythms that determine your healthy sleep cycle. As much as possible, try to stick to a personal schedule that allows you to get between seven and nine hours of sleep per night. Factor in 30 to 45 minutes of pre-sleep...
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    Sleep Deprivation, yan po topic, penge naman po maganda intro at title
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    Help About my body clock

    Mag papasukan na kasi need ko tips para ma reset body clock ko nasasanay na kasi ako sa pag pupuyat araw2 halos 5 am nako natutulog tas magigising ako 2pm which is bad habit na lagi ako late sa pag kain at na sskip ko din paminsan need ko tips para ma reset body clock ko.
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    Help How to wake up early?

    •Tips naman po mga master kung paano gumising ng napaka aga, heavy sleeper po kasi ako yung tipo na kahit itapat mo pa yung alarm sakin hindi ako magigising unless may manggigising talaga sakin kaso wala haha. ~TIA sa mga sasagot at sa mga advice~
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    How to sleep early?

    Tips naman dyan para makatulog na ko hahaha
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    Are you a morning person or a night owl?

    I'm definitely a morning person. Being a morning person gives me extra time to accomplish more things. Plus, hindi ko kayang matulog ng super late. Antukin ako. Haha! How about you?
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    Trivia Mga tanong sa tulog

    By Dr Willie Ong Bakit automatikong nakakatulog sa gabi? May maraming stages ang ating pag-tulog. Nag-uumpisa tayo na gising at unti-unting maka-tutulog. Kapag gising tayo, ang utak natin ay may taglay na alpha waves. Ang ibig sabihin ay alerto tayo. Kapag tayo ay humiga at unti-unting...
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    Globe Maintenance ang globe mula 10pm hanggang 6am (july14-15)

    Tulog na maaga pang aasa bukas haha
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    Trivia Interesting facts about staying up late (night owls)

    Interesting facts about staying up late(night owls) Early to bed and early to Rise has been one of the saying all of us have grown up to. Our ancestors arose early in the morning and went to sleep in the late evening. The purpose was to make complete utilization of light of day as little could...
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    Healthy sleep

    HEALTHY SLEEP TIPS Healthy sleep habits can make a big difference in your quality of life. Having healthy sleep habits is often referred to as having good sleep hygiene. Try to keep the following sleep practices on a consistent basis: Stick to a sleep schedule of the same bedtime and wake...
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    Trivia Lychnobite

    Manggagawang nocturnal:)
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    Trivia Japanese sleeping at work

    Ganito pala sa Japan, apply na mga repa:):)
  28. L

    Tutorial 9 science-based fixes for common sleep problems

    We all know that sleep can do wonders for the mind and body, but getting a good night’s rest is often easier said than done. Obviously, there are countless reasons why you may not get to bed as early as you’d like (hello, Netflix, sick kids, bosses who send emails at 10 p.m. … the list goes on...
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    Closed My plan for valentines

    Is to sleep hehehehe:)
  30. L

    Closed Bulabog!

    Guluhin mo na ang lasing, wag lang .... - - - - - - yung mas malaki sayo, yung kaya mo lang.:)
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    Closed Sleep-fact

  32. N

    Closed Karoshi: the silent killer (are you at risk)

    "KAROSHI" - Defined as "Death from Overwork" In Japan, deaths due to overwork hit a record high in 2016. Roughly 20% of Japanese workers are at risk of "karoshi". This is pervasive in Japan but are you at risk? New findings on CIRCADIAN RHYTHMS say "YES". All life forms regulate BODY CLOCKS...
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    Closed Sleep and the energies : listen to your body

    A lot of people have trouble with sleep, whether it be difficulty falling asleep, not getting enough sleep, or staying asleep. The longer you suffer from one or more of these things, the more you start to decline a new “normal” for yourself and forget what a healthy sleeping pattern actually...
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    Closed Di gayod ko katulog ba hahay

    Ngano man ni oy hahaha
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    Closed Facts about sleep

    Some interesting facts about sleep are as follows: Trivia Fact 1: The average ãdül† needs a total sleep time of 7 to 9 hours per day - it is not true that older people need less sleep however over 50% of people over 64 years old suffer from some type of sleep disorder Trivia Fact 2: Some...
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    Closed Tulog time

    Masama daw yung laging puyat kaya naman matutulog na ako, goodnight.:)
  37. K

    Closed Bakit gising ka pa?

    Bakit gising ka pa? Ako nanunuod pa ng anime, ikaw ano pang ginagawa mo? :)
  38. T

    Closed Sleep paralysis

    Sleep Paralysis or Waking nightmare: Paano ba ito maiiwasan at ano ang gagawin upang magising agad? Naranasan mo na ba na kakatulog mo palang pero bigla ka magigising na parang may humahatak sa'yo o nakadagan sa iyong ******? Alam mo ang nangyayari sa paligid mo pero di ka makakilos o...
  39. J

    Closed Sarap matulog, wag natin kalimutan matulog

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    Closed Sleeping for less than six hours increases risk of early death

    A study has found that early death can be caused by regularly sleeping less than six hours each night, according to The Guardian The study also found that too much sleep could cause health problems, however sleeping for six to eight hours each night is optimal for good health. Conducted by...
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    Closed 8 Scary Side Effect of Sleep Deprivation

    The immediate effects of skimping on sleep are obvious. You're groggy, unfocused, sluggish and dying for a nap (or a second cup of coffee). Then there are the sneakier signs you're overtired: You're overly emotional, starving and clumsier than usual. Most of the time, a solid night's sleep will...
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    Closed [HELP] sleeping problem

    pahinge po sana ng advice , hindi kc ako makatulog.. ano ba dapat gawin??