Первый слайд презентации: Sleep and its disorders
Performed by student 71208 group Artemjeva Anastasia
What is sleep? Sleep is a normal, reversible, recurrent state of reduced responsiveness to external stimulation that is accompanied by complex and predictable changes in physiology. 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
2. Stages of sleep and awakening During sleep, we usually pass through five phases: stages 1, 2, 3, 4, and REM (rapid eye movement) sleep. These stages of sleep progress in a cycle from stage 1 to REM sleep, then the cycle starts over again with stage 1.
3. Sleep and Circadian Rhythms Circadian rhythms are regular changes in mental and physical characteristics that occur in the course of a day ( circadian is Latin for “around a day”). When travelers pass from one time zone to another, they suffer from disrupted circadian rhythms, an uncomfortable feeling known as jet lag.
4. How Much Sleep Do We Need? The amount of sleep each person needs depends on many factors, including age.
5. Why Do We Need Sleep? To Survive To Keep the Nervous System Functioning To Keep Us Growing 6. Why is Sleep Important for Our Health? Sleep and sleep-related problems play a role in a large number of human disorders and affect almost every field of medicine. Sleep impacts on the Immune System.
Sleep disorders Sleep disorders are a group of conditions that affect the ability to sleep well on a regular basis. General symptoms of sleep disorders include: difficulty falling or staying asleep daytime fatigue strong urge to take naps during the day irritability or anxiety lack of concentration depression
Causes of sleep disorders : Allergies and Respiratory Problems Nocturia (frequent urination) Chronic Pain Some of the most common causes of chronic pain include: arthritis chronic fatigue syndrome fibromyalgia inflammatory bowel disease persistent headaches continuous lower back pain Stress and Anxiety It’s important to receive a diagnosis and treatment right away if you suspect you might have a sleep disorder.
Types of sleep disorders Insomnia Insomnia refers to the inability to fall asleep or to remain asleep. It can be caused by jet lag, stress and anxiety, hormones, or digestive problems. Insomnia is usually classified as one of three types: chronic, which is when insomnia happens on a regular basis for at least one month intermittent, which is when insomnia occurs periodically transient, which is when insomnia lasts for just a few nights at a time
Sleep Apnea Sleep apnea is characterized by pauses in breathing during sleep. This is a serious medical condition that causes the body to take in less oxygen. It can also cause you to wake up during the night. Parasomnias Parasomnias are a class of sleep disorders that cause abnormal movements and behaviors during sleep.
Restless Leg Syndrome Restless leg syndrome (RLS) is an overwhelming need to move the legs. This urge is sometimes accompanied by a tingling sensation in the legs. Narcolepsy Narcolepsy is characterized by “sleep attacks” that occur during the day. This means that you will suddenly feel extremely tired and fall asleep without warning.
Diagnostics polysomnography electroencephalogram genetic blood testing
Treatment Treatment for sleep disorders can vary depending on the type and underlying cause. However, it generally includes a combination of medical treatments and lifestyle changes. Going to bed and waking up at the same time every day can also significantly improve your sleep quality. While you might be tempted to sleep in on the weekends, this can make it more difficult to wake up and fall asleep during the workweek.
Sleep is a very important activity that every individual should observe daily. People who sleep enough is normally active, happy and productive during the day. Their concentration on activities and tasks they engage in during the day is normally high leading to a high productivity. People who sleep at least eight hours a day is not affected by the small ailments like the common cold. Sleeping enough, therefore, makes a person live a healthy, active and productive life. Sleep and be happy and healthy.