PDF Update on Sleep and Its Disorders (Annual Review of Medicine Book 62)

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In some ways, oversleeping itself appears to directly influence certain risk factors, and in other cases, it may be a symptom of other medical conditions. Read on to learn about the effects of oversleeping, what to look out for and how to work towards getting healthy, quality slumber. Cognition Using data from the Lumosity brain-training platform, researchers found that cognitive performance on three different games all peaked when people slept around seven hours , worsening with more or less rest.

Other studies have also found memory impairments and decreased cognitive function with longer sleep. Degenerative Diseases Other research indicates that getting too little or too much sleep may be tied to increased Alzheimer's disease risk factors and a large Spanish study found that long sleepers may be at increased risk of developing dementia.

Depression and Mental Health Oversleeping is considered a potential symptom of depression. People with long sleep durations are also more likely to have persistent depression or anxiety symptoms compared to normal sleepers. A recent twin study also found that sleeping too little or too much seemed to increase genetic heritability of depressive symptoms compared to normal sleepers. A study of older adults also found that those who slept more than 10 hours reported worse overall mental health over the past month compared to normal sleepers. Some research shows that irregularities in the body's sleep clock may play a role in depressive symptoms, and returning sleep to a healthy pattern is often a focus of treatment.

Some differences were seen among races in the study though, suggesting sleep duration may not be one-size-fits-all. Elevated CRP was seen in:. Two previous studies also found links between inflammation and longer sleep. Too much sleep on a regular basis can increase the risk of diabetes, heart disease, stroke and death according to several studies done over the years. Too much is defined as greater than nine hours. The most common cause is not getting enough sleep the night before, or cumulatively during the week.

This is followed by sleep disorders such as sleep apnea, idiopathic hypersomnolence, as well as depression. There are myriad reasons to avoid oversleeping from loss of your job to missing out on mornings with your family. However if you continue to have this problem and struggle to wake up make sure there is not an underlying sleep disorder at fault.

If you oversleep frequently, you need to ask yourself WHY. It's time to take a close look at your sleep and sleep habits. Start keeping a log of what you are doing in the hour before you go to bed. Find relaxing and calming things to do, such as reading a book or magazine. But NOT on a tech device! Drinking alcohol or caffeine in the hours before bed can also impact your sleep quality.

Are you listening? Our body clock, also known as circadian rhythm, functions best when we have a consistent sleep and wake time. Sounds possible but how do you enact this? If you do improve your sleep habits and after a few weeks are still oversleeping, it's time to see your physician to assess whether you may have a sleep disorder needing diagnosis and treatment.

Sleep is a necessity, both in quality and quantity. Oversleeping usually isn't about needing more sleep - it's usually about being exhausted because of some other physical, mental, emotional, or spiritual deficit.


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Try to include a diverse range of fruits, vegetables, lean proteins, nuts and grains so your body receives the minerals, vitamins and nutrients it needs to function. Things like watermelon, tomatoes, carrots, leafy greens, walnuts, almonds, chicken, wild salmon, and whole grains like oats, wheat, millet and amaranth all supply sleep-supporting nutrients.

Pure water intake is also important -- people who had better sleep drank plenty of plain water throughout the day. But, don't eat too much too close to bedtime , as heavy, fatty or spicy midnight snacks could backfire and keep you up or affect sleep quality. It's best to balance intake throughout the day and perhaps have a healthy dinner that includes a carbohydrate. Reach for lighter but satiating things like crackers and natural peanut butter, a banana, a low-sugar yogurt or a piece of toast if you do need a nibble close to bedtime.

Alcohol changes sleep cycles, impacting both slow wave and REM sleep as well as various hormones and neurotransmitters. The overall effect of less restorative rest possibly creates the desire to sleep longer hours and also reduces overall activity, further affecting health. If you're practicing good sleep hygiene habits and you find you still need an excessive amount of rest, or if your sleep need has changed without an obvious cause, consult your doctor.

Increased sleep need can be a symptom of things like hypothyroidism, heart problems, depression even low-level , and sleep apnea. Your doctor can assess your symptoms and determine the best way to approach improving rest. As with many other aspects of health, moderation tends to be key when it comes to sleep. Much is said about the dangers of too little sleep, but it seems it is possible to have too much of a good thing. Regularly sleeping in excess of nine hours is linked with lower mental and physical health -- making it important to strive for a "normal" amount of sleep and to be aware of changes in your body's sleep need that may signal other concerns.

Quantitative and Qualitative EEG Findings in iRBD

Do you tend to oversleep or sleep longer than normal? How do you notice activity level, foods, or things you do before bed affecting your sleep need? This article originally appeared on the Amerisleep blog. Rosie Osmun is the Creative Content Manager at Amerisleep , a progressive memory foam mattress brand focused on eco-friendly sleep solutions.

Rosie writes more posts on the Amerisleep blog about the science of sleep, eco-friendly living, leading a healthy lifestyle and more. Real Life. Real News. Real Voices. Help us tell more of the stories that matter from voices that too often remain unheard. News Politics Entertainment Communities. HuffPost Personal Videos Horoscopes.

Part of HuffPost Wellness. All rights reserved. Skip to Article. Profile-Icon Created with Sketch. Fill 8 Copy 2 Created with Sketch. So, more sleep must be better right? Not so fast, say some researchers. First, let's address what oversleeping means. The gold standard of normal has long been considered eight hours, and it's a good median benchmark.

Recent reviews of current research from the experts at the National Sleep Foundation broaden the spectrum a little. They say that somewhere in the range of.

Principles and Practice of Sleep Medicine

Some say closer to seven hours could be even better, such as Arizona State University professor Shawn Youngstedt, who told the. Wall Street Journal. The "right" amount of sleep proves somewhat individual as some people will feel great on seven hours and others may need a little longer. However, in most studies and for most experts, over nine hours is considered an excessive or long amount of sleep for adults.

If you sleep in a little sometimes on the weekends, it's likely no big deal. If you regularly sleep more than nine hours each night or don't feel well-rested on less than that, then it may be worth taking a closer look. It's estimated that about. Seeking to find the sleep "sweet spot" for optimal health, researchers have been busy recently looking at how different habits connect with physical and mental well-being. Several trends have emerged linking oversleeping with higher rates of mortality and disease as well as things like depression.

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. Sleep plays an important role in the brain, as the brain clears out waste byproducts, balances neurotransmitters and processes memories at rest.

At both short and long extremes, rest may have an effect on mood and mental health. Chronic inflammation. Certain lifestyle factors like smoking, being obese, and prolonged infections can contribute to inflammation, and getting too little or too much sleep may also play a role. Inflammation in the body is measured by levels of cytokines also called C-reactive proteins, or CRP.

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One study. Whites sleeping less than five and more than nine hours. African-Americans sleeping less than five and eight hours.

How can I get enough sleep?

Asians sleeping more than nine hours. Interestingly, Asians sleeping five to six hours had the lowest levels, a pattern mimicked in another Taiwanese study. While many times it can seem intuitive to rest more when we're in pain, research shows that in some cases too much sleep can exacerbate symptoms.


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  • Back pain can worsen from too little activity or spending too much time in bed. Sleeping in an un-ergonomic position or using an old or unsupportive mattress.

    Exploring Sleep Disorders - UCLAMDChat Webinars

    Combined with staying still for a long period of time, these factors mean many people awake with worse back pain especially when spending longer amounts of time in bed. Oversleeping is also linked with higher rates of headaches. Referred to as a ". The cause isn't necessarily sleep itself, though, as some researchers link it with.

    American Journal of Psychiatry

    Study authors suggest sleep outside the normal range could be affecting hormones and circadian cycles, impairing fertility. Glucose tolerance refers to the body's ability to process sugars, and impaired glucose tolerance is a associated with insulin resistance and is a risk factor for type 2 diabetes and heart disease. Canadian study. Short and long sleepers both gained more weight than normal sleepers over the six year period 1.

    Other studies generally only support trends of higher body weight for short sleepers, but it could be that associated factors like diabetes risk contribute to weight gain for long sleepers. The study found that people sleeping more than eight hours per night were twice as likely to have. Nurses' Health Study. University of Cambridge. CK1 regulates PER2 levels by binding to a CK1 binding site on the protein, allowing for phosphorylation which marks the protein for degradation, reducing protein levels. This negative feedback regulates the levels and expression of these circadian clock components.

    Without proper phosphorylation of hPER2 in the instance of a mutation in the CK1 binding site, less Per2 mRNA is transcribed and the period is shortened to less than 24 hours. Individuals with a shortened period due to this phosphorylation disruption entrain to a 24h light-dark cycle, which may lead to a phase advance, causing earlier sleep and wake patterns. However, a 22h period does not necessitate a phase shift, but a shift can be predicted depending on the time the subject is exposed to the stimulus, visualized on a Phase Response Curve PRC.

    An A-to-G missense mutation resulted in a threonine-to-alanine alteration in the protein. Fruit flies and mice engineered to carry the human mutation also demonstrated abnormal circadian phenotypes, although the mutant flies had a long circadian period while the mutant mice had a shorter period. These mice had a circadian period almost 2 hours shorter than wild-type animals under constant darkness.

    Sleep in adults

    From Wikipedia, the free encyclopedia. Advanced Sleep Phase Disorder Specialty Chronobiology Symptoms Earlier than desired onset and offset of sleep Complications Sleep deprivation Risk factors Increased incidence with age Diagnostic method Polysomnography, Horne-Ostberg morningness-eveningness questionnaire Treatment Bright light therapy, chronotherapy Advanced Sleep Phase Disorder ASPD , also known as the advanced sleep-phase type ASPT of circadian rhythm sleep disorder , is a condition that is characterized by a recurrent pattern of early evening e.


    • Description.
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    • Sleep medicine clinics. Archives of Neurology. Neurologic clinics. Experimental neurology. Annual Review of Medicine. Trends in Genetics. Nature Medicine. Nature Reviews Genetics. Chronobiology International. Cellular Signalling. Toh; Christopher R. Jones; et al. Padiath; Robert E. Shapiro; et al. ICD - 10 : G Encephalitis Viral encephalitis Herpesviral encephalitis Limbic encephalitis Encephalitis lethargica Cavernous sinus thrombosis Brain abscess Amoebic.

      Myelitis : Poliomyelitis Demyelinating disease Transverse myelitis Tropical spastic paraparesis Epidural abscess. Encephalomyelitis Acute disseminated Myalgic Meningoencephalitis. Leigh syndrome. Focal Generalised Status epilepticus Myoclonic epilepsy. Migraine Familial hemiplegic Cluster Tension. Insomnia Hypersomnia Sleep apnea Obstructive Congenital central hypoventilation syndrome Narcolepsy Cataplexy Kleine—Levin Circadian rhythm sleep disorder Advanced sleep phase disorder Delayed sleep phase disorder Nonhour sleep—wake disorder Jet lag.

      Brain herniation Reye's Hepatic encephalopathy Toxic encephalopathy Hashimoto's encephalopathy. Friedreich's ataxia Ataxia-telangiectasia. Hypersomnia Insomnia Kleine—Levin syndrome Narcolepsy Sleep apnea Central hypoventilation syndrome Obesity hypoventilation syndrome Sleep state misperception. Circadian rhythm disorders. Advanced sleep phase disorder Delayed sleep phase disorder Irregular sleep—wake rhythm Jet lag Nonhour sleep—wake disorder Shift work sleep disorder. Catathrenia Night terror Rapid eye movement sleep behavior disorder Sleepwalking Somniloquy.

      Bruxism Cyclic alternating pattern Night eating syndrome Nocturia Nocturnal myoclonus.