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Sleeping is associated with a state of muscle relaxation and limited perception of environmental stimuli. The purposes and mechanisms of sleep are only partially clear and the subject of substantial ongoing research.[2] Sleep is sometimes thought to help conserve energy, though this theory is not fully adequate as it only decreases metabolism by about 5–10%.[3][4] Additionally it is observed that mammals require sleep even during the hypometabolic state of hibernation, in which circumstance it is actually a net loss of energy as the animal returns from hypothermia to euthermia in order to sleep.[5] Humans may suffer from a number of sleep disorders. These include dyssomnias (such as; insomnia, hypersomnia, and sleep apnea) and parasomnias (such as sleepwalking and REM behavior disorder; and the circadian rhythm sleep disorders). Physiology[edit] Hypnogram showing sleep cycles from midnight to 6.30 am, with deep sleep early on. Stages[edit] 30 seconds of deep (stage N3) sleep. REM sleep[edit] Related:  Sleepsleep bedtime calculator Cyclamax, Restaure les cycles du Sommeil, synchronise l'horloge Cyclamax Sommeil et Stress Cyclamax Diminue le Stres Facilite le sommeil 1- Diminue le stress 2- Améloire la qualité du sommeil. Cyclamax diminue le stress grâce à la mélisse et la passiflore, réputées pour leurs propriétés relaxantes - La passiflore a des propriétés relaxantes. - Le houblon favorise l'endormissement. - La valériane contribue à améliorer la qualité du sommeil et à retrouver un sommeil réparateur. C'est l'horloge biologique qui règle le sommeil de chaque individu en régulant les cycles de veille et sommeil. Utilisation : Prendre 2 gélules de CYCLAMAX par jour de préférence le soir au cours du dîner, avec un verre d'eau.

Review of Galantamine: the Lucid Dreaming Pill | The Dream Studies Portal So you’re considering the red pill… Galantamine has emerged as THE lucid dreaming pill. This natural supplement has been used for centuries in China as a memory enhancer, and was even noted by the ancient Greeks for its powerful mind-inducing effects. Now we know that galantamine indirectly promotes dreaming sleep as well as lucid dreaming, which is the art of becoming self-aware in your dreams. There’s a lot of hype about galantamine, so I want to cover the basics about how it works on the brain, the studies that have proven its effectiveness, and my personal recommendations for experimentation with this safe and natural supplement. I also want to be brutally honest about some of the mild psychological and physical side effects as well. Want to cut to the chase? Galantamine & Memory red spider lily (Lycoris radiata) Galantamine is found in the natural world in many plant sources, including the common daffodil (Narcissus pseudonarcissus). How Galantamine Works On your Brain Laberge’s results?

How to Sleep Better Steps Method 1 Getting to Sleep Quickly (Easy Methods) <img alt="Image titled Sleep Better Step 1" src=" width="728" height="546" class="whcdn">1Take a nice warm bath or shower in the evening. As well as relaxing you, afterwards your body will cool down, which helps you sleep better. <img alt="Image titled Sleep Better Step 6" src=" width="728" height="546" class="whcdn">6Add gentle sounds. Method 2 Moderating your Diet <img alt="Image titled Sleep Better Step 13" src=" width="728" height="546" class="whcdn">1Eat dinner at least three hours before bedtime. Method 3 Making Your Bed and Bedroom Welcoming Method 4 Method 5

Dormez pour être beau ! Le sommeil serait un facteur important de notre beauté. © Happy Baratinha, Flickr, CC Dormez pour être beau ! - 2 Photos Le sommeil est un processus homéostatique essentiel, qui permet à l’organisme de se reposer afin d'être plus efficace au prochain réveil. D’un point de vue social, la perception d’un individu en manque de sommeil n’a jamais été étudiée. Le visage, reflet de l'organisme Afin de déterminer comment sont perçues les personnes fatiguées, 23 individus (dont 11 femmes) ont été photographiés suite à deux types de conditionnement, afin d’être ensuite soumis aux regards et aux impressions de « juges ». Un même homme est perçu différemment selon qu'il est reposé (à gauche) ou non (à droite). © British Medical Journal Les 23 personnes ont été photographiées après les deux conditionnements, et ce dans des conditions contrôlées : sans maquillage, avec la même coiffure, le même rasage et la même expression faciale neutre et relâchée. Le manque de sommeil se lit sur le visage

Alternate Sleep Cycles Most people only think that there is one way to sleep: Go to sleep at night for 6-8 hours, wake up in the morning, stay awake for 16-18 hours and then repeat. Actually, that is called a monophasic sleep cycle, which is only 1 of 5 major sleep cycles that have been used successfully throughout history. The other 4 are considered polyphasic sleep cycles due to the multiple number of naps they require each day. Well the most important of every sleep cycle is the Stage 4 REM (Rapid Eye Movement) sleep, which has been shown to provide the benefits of sleep to the brain above all other stages of sleep. This way, you still get the benefits of 8 hours of sleep without wasting all of the time it takes to get to REM cycles, resulting in a much more efficient sleep cycle. Uberman Cycle: 20 to 30 minute naps every 4 hours, resulting in 6 naps each day. Everyman Cycle: One longer “core” nap that is supplemented with several 20-30 minute naps. Dymaxion Cycle: Biphasic/Siesta Cycle: – Hang in there.

How Much Sleep Do You Actually Require (and Why)? I have found that it varies greatly depending on what I eat. I was able to run one of the crazy polyphasic schedules for a short while (Everyman, with a 3 hour core nap and 3 20 minute naps) while I was eating properly. I'm a college student though, so when the money ran dry and I resorted to ramen and other cheap foods, my energy tanked and I crashed. I have a very high rate of metabolism, so I'm very thin and I need to eat 3 proper meals a day to function. Right now, it's finals week and I'm also out of money, so I can't afford to eat properly. It's complicated. ^_^ There is no set number for me I'm afraid.

Dormir rend beau, c'est prouvé L’un des cobayes de l’étude, reposé et privé de sommeil () Un même visage paraît plus beau et en meilleure santé s’il a bénéficié d’une bonne nuit de sommeil (à gauche) que lorsqu’il sort d’une nuit blanche (à droite) : c’est ce qu’on établi des scientifiques de l’université de Stockholm dans une étude statistique. Le sommeil est un processus homéostatique essentiel, qui permet à l’organisme d’équilibrer les paramètres physico-chimiques (glycémie, température corporelle) et donc de se reposer afin d’être plus efficace au prochain réveil. Ses effets bénéfiques sont d’ailleurs bien déterminés au niveau cognitif, psychologique ou comportemental, puisqu’un individu fatigué sera souvent plus irritable, par exemple. D’un point de vue social, la perception d’un individu en manque de sommeil n’a jamais été étudiée. Il envoie ainsi des signaux aux autres individus d’un groupe, qui captent des informations sur son état émotionnel, ses intentions, voire son potentiel de reproduction.

Dreams - 10 Facts About Dreams Dreams can be fascinating, exciting, terrifying or just plain weird. Learn more about some of the things that researchers have discovered in these ten facts about dreams 1. Everybody Dreams Photo by Stephanie Swartz / iStockPhoto Men do it. 2. Photo by Bob Smith According to estimates by dream researcher J. 3. Photo by Daniel Meney While approximately 80 percent of all dreams are in color, there are a small percentage of people who claim to only dream in black and white. 4. Photo by Nur Cengiz Researchers have found a number of differences between men and women when it comes to the content of their dreams. 5. Photo by Paul Paul Have you ever watched a sleeping dog wag its tail or move its legs while asleep? 6. Photo by Emil Bacik A lucid dream is one in which you are aware that you are dreaming even though you are still asleep. 7. Photo by Mayr - Over a period of more than forty years, researcher Calvin S. 8. Photo by Adrian van Leen 9. 10. References Alleyne.

Sleep better with Pzizz (discounted today only!) Pzizz , a highly rated nap/sleep aid that works by generating unique binaural soundtracks for better snoozing, is on sale today for $24.95 at MacUpdate (38% off). Normally I wouldn’t throw something like this out there, but I happen to know Edward , the guy behind Pzizz, and have been chatting with him ever since he showed up on my blog (thanks Digg !), and know that he’s a great guy. Personally, I’ve found Pzizz really handy not just for how it helps me fall asleep (which it does) but for both the quality of rest that I get and the way in which it wakes me up; unlike an alarm that you into consciousness, Pzizz is designed to bring you out of sleep in waves, slowing reviving you and helping you feel refreshed. LifeHacker and 43Folders have been all over Pzizz , so if you’ve had any doubt (or if you have an iPod!)

L'électricité des songes Voir le cerveau penser est un mythe ou un fantasme [mais] voir le cerveau fonctionner est possible, a écrit le psychiatre Edouard Zarifian. De la même manière " voir le cerveau rêver " est un rêve inaccessible à l'observation scientifique et médicale, mais on peut effectivement le voir fonctionner pendant le sommeil paradoxal. On assimile généralement rêve et sommeil paradoxal car le souvenir des rêves est optimal lorsque le réveil s'effectue pendant la phase de sommeil paradoxal, ou juste après. Dans 80 % des cas, la description des rêves est très précise. Mais cette assimilation est abusive : il a été montré que nous pouvons rêver à tout moment de la nuit, au cours de chaque stade de sommeil; le souvenir en est plus ou moins précis. L'activité cérébrale pendant le sommeil paradoxal peut être mesurée par l'électroencéphalographie cérébrale (EEG). En pratique, l'EEG est enregistrée simultanément en différents points du cuir chevelu chez les dormeurs coiffés d'un casque d'électrodes.

16 Tips for Staying Awake When You're Tired While there's an art to surviving the all-nighter, there's also an art to staying awake throughout the day when you are operating on little to no sleep. Here's a few general tips: Drinking a lot of water is a must. Doing jumping jacks every thirty minutes in the office hallway might make you look weird, but it will really keep you from falling asleep. If you have already incorporated those tips before, try some yogic breathing techniques, sniffing on peppermint essential oil, or some basic acupressure to help clear the sleep fog in your brain. What are your tips for staying awake during the day when you are tired? Click on image below to enlarge.

Sleeping Tricks - Effective Techniques For Falling Asleep How to Sleep More Effectively, Starting Tonight at Personal Development with Ririan Project “There is a time for many words, and there is also a time for sleep.” - Homer Tired after getting a full nine hours and still feeling exhausted? You sleep the sleep of the innocent – you nod off quickly, don’t have nightmares and have no trouble breathing – and still you can hardly get up in the morning and seldom feel totally awake, no matter how long you slept the previous night. You are suffering from a clear-cut case of ineffective sleep. The good news is that, starting tonight, you can improve the quality of your sleep. 1. It is possible to sleep too long or at the wrong time. 2. As I mentioned, there are three optimal lengths of sleep -­ but that doesn’t mean you can just choose one. 3. Most people can get away with some wildness in their routines as long as they soak up some bright light at the right time. 4. Your body was designed to sync with the cycles of nature – including daylight and darkness. 5. To get the most out of your shutdown time, keep regular hours.