Overview and Definition
Thomas Dekker -1572 - 1632
Sleep is natural to all living beings. It signals the cessation of physical activity and heralds the hours of rest. Akin to other needs of the body such as food, water, and warmth, sleep is a blissful state of inactivity and unawareness that provides the required rest and rejuvenates an individual for the activities of the ensuing day with increased vigor.
Every living creature goes through phases of sleep and wakefulness. The simplest answer to why we sleep is because we get tired and we cannot function if we get too sleepy.
When man was created, he came with an internal or biological clock, which controls the timings of the wakefulness-sleep cycle. This clock, which is sensitive to light, had evolved over the ages in close approximation to the 24hr light-dark cycle (circadian rhythm). Our ancestors followed the sunrise and sunset routine and had regular sleep schedules. Then came Thomas Alva Edison, whose invention of the electric bulb tampered with the signals received by the internal clock, setting our sleep and its pattern in disarray.
Make sure that you get enough sleep every day because lack of sleep can increase appetite, contributing to overeating and weight gain. Hormones that regulate appetite are influenced by sleep duration.
Latest Publications and Research on SleepAdequacy of Samples Obtained by EBUS-TBNA for Molecular Analysis in Patients with Non-Small Cell Lung Cancer: Systematic Review and Meta-Analysis. - Published by PubMed
Raising the Stakes: Assessing Competency with Simulation in Pulmonary and Critical Care Medicine. - Published by PubMed
Chronic Cigarette Smoke Exposure Subdues PP2A Activity by Enhancing Expression of the Oncogene CIP2A. - Published by PubMed
Restrictive Spirometry Pattern, Cardiac Structure and Function, and Incident Heart Failure in African-Americans: The Jackson Heart Study. - Published by PubMed
Nasal Positive Airway Pressure and Sleep Apnea: Reflections on an Experimental Method that Became a Therapy. - Published by PubMed