SleepManatee | David E. Law, M.D. - Diagnosis & Treatment of Sleep Disorders - ABIM Certified: Internal Medicine, Pulmonary & Sleep Medicine


STRUCTURE — The anatomy of sleep
Your brain doesn’t get the night off

NEUROSCIENCE — Off to night school
Make this a night to remember

DEPRIVATION — A wake-up call
Not getting enough sleep is shown to cause health problems

OBESITY — Heavy sleepers
Lying awake can make you put on weight

CHRONOBIOLOGY — Stepping out of time
When you’re no longer in sync with the rhythm of the night

PERSPECTIVE — Casting light on sleep deficiency
Charles Czeisler contends that the nights are too bright

MOOD DISORDERS — The dark night
A tangled web of poor sleep and depression

INSOMNIA — Chasing the dream
From sleeping pills to cognitive therapy

NEURODEGENERATION — Amyloid awakenings
Can a lack of sleep cause Alzheimer’s?

Intro to NatureOutlook

The articles in the following links (right) recently published in the May 23 supplement of the well-respected journal NatureOutlook are very interesting, opening new doors of knowledge and investigation into many aspects of sleep. The basic questions are:

  1. Why does our brain need sleep?
  2. What happens when we don’t get enough?
  3. How does our 24 hour society affect sleep?
  4. Are some of modern societies’ health problems linked to changes in sleep quantity or quality?

Enormous changes in our way of life over the last 100 years via artificial light and electricity have naturally changed the way our brains perceive the day/night (circadian) cycle. The effects are physiological in ways previously not understood. For example, our hormonal cycles tend to be circadian.

If we can’t tell day from night, what happens then?

These articles will give you insight into the basic science that ties sleep to human health, and an appreciation of why we should consider sleep as an important health parameter. Kudos to the authors and to our friends at RESMED for sponsoring the publication.

~ D. E. Law, MD

About Sleep Disorders

Any condition that creates daytime drowsiness puts you at risk for mistakes and accidents. Every year, more than 100,000 traffic accidents are attributed to sleepy drivers. In addition to causing daytime drowsiness, disorders such as sleep apnea can also raise blood pressure and put you at greater risk for developing heart disease.

Sleep apnea is a disorder characterized by stopped or slowed breathing during sleep. When breathing stops, you wake up, which causes sleep to become fragmented and less restful. Patients with sleep apnea often snore and may suffer from daytime drowsiness and morning headaches. Sleep apnea and snoring often disrupt your partner's sleep.

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A sleep study, otherwise known as a polysomnogram (PSG), is a test done in either a home setting or in a facility specially equipped to perform an overnight recording of the multiple physiologic variables important in differentiating normal from abnormal sleep. This study requires the attachment of sensors and other devices that measure such things as brain waves (EEG), airflow, oxygen saturation, breathing effort, heart beat (ECG), body position, snoring, limb movements and others. The study done at home consists of less information but may suffice in less complex situations, whereas the study done in a facility is more complex and requires the presence of a trained sleep technician.

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