Sleep And Relaxation




Sleep was long considered just a uniform block of time when you are not awake. Thanks to sleep studies done over the past several decades, it is now known that sleep has distinct stages that cycle throughout the night in predictable patterns. How well rested you are and how well you function depend not just on your total sleep time but on how much of the various stages of sleep you get each night. Your brain stays active throughout sleep, and each stage of sleep is linked to a distinctive pattern of electrical activity known as brain waves.

Sleep is divided into two basic types: rapid eye movement (REM) sleep and non-REM sleep (with four different stages). Typically, sleep begins with non-REM sleep. In stage 1 non-REM sleep, you sleep lightly and can be awakened easily by noises or other disturbances. During this first stage of sleep, your eyes move slowly, and your muscle activity slows. You then enter stage 2 non-REM sleep, when your eye movements stop. Your brain shows a distinctive pattern of slower brain waves with occasional bursts of rapid waves. When you progress into stage 3 non-REM sleep, your brain waves become even slower, although they are still punctuated by smaller, faster waves. By stage 4 non-REM sleep, the brain produces extremely slow waves almost exclusively. Stages 3 and 4 are considered deep sleep, during which it is very difficult to be awakened. Children who wet the bed or sleep walk tend to do so during stages 3 or 4 of non-REM sleep. Deep sleep is considered the “restorative” part of sleep that is necessary for feeling well rested and energetic during the day.

During REM sleep, your eyes move rapidly in various directions, even though your eyelids remain closed. Your breathing also becomes more rapid, irregular, and shallow, and your heart rate and blood pressure increase. Dreaming typically occurs during REM sleep. During this type of sleep, your arm and leg muscles are temporarily paralyzed so that you cannot “act out” any dreams that you may be having. The first period of REM sleep you experience usually occurs about an hour to an hour and a half after falling asleep. After that, the sleep stages repeat themselves continuously while you sleep. As the night progresses, REM sleep time becomes longer, while time spent in non-REM sleep stages 3 and 4 becomes shorter. By morning, nearly all your sleep time is spent in stages 1 and 2 of non-REM sleep and in REM sleep. If REM sleep is disrupted during one night, REM sleep time is typically longer than normal in subsequent nights until you catch up. Overall, almost one-half your total sleep time is spent in stages 1 and 2 non-REM sleep and about one-fifth each in deep sleep (stages 3 and 4 of non-REM sleep) and REM sleep. In contrast, infants spend half or more of their total sleep time in REM sleep. Gradually, as they mature, the percentage of total sleep time they spend in REM progressively decreases to reach the one-fifth level typical of later childhood and adulthood.

Why people dream and why REM sleep is so important are not well understood. It is known that REM sleep stimulates the brain regions used in learning and the laying down of memories. Animal studies suggest that dreams may reflect the brain’s sorting and selectively storing important new information acquired during wake time. While this information is processed, the brain might revisit scenes from the day while pulling up older memories. This process may explain why childhood memories can be interspersed with more recent events during dreams. Studies show, however, that other stages of sleep besides REM are also needed to form the pathways in the brain that enable us to learn and remember.

Relaxation techniques: Learn ways to calm your stress

Relaxation techniques are a great way to help your quest for stress management. Relaxation isn't just about peace of mind or enjoying a hobby. Relaxation is a process that decreases the wear and tear of life's challenges on your mind and body.

Whether you have a lot of stress in your life or you've got it under control, you can benefit from learning relaxation techniques. Learning basic relaxation techniques isn't hard. Explore these simple relaxation techniques to get you started on de-stressing your life and improving your health.

The benefits of relaxation techniques

With so many things to do, relaxation techniques may take a back seat in your life. But that means you may miss out on the health benefits of relaxation.

Practicing relaxation techniques can improve how you physically respond to stress by:
  • Slowing your heart rate
  • Lowering blood pressure
  • Slowing your breathing rate
  • Reducing the need for oxygen
  • Increasing blood flow to major muscles
  • Reducing muscle tension
You may also gain these overall health and lifestyle benefits from relaxation techniques:
  • Fewer physical symptoms, such as headaches and back pain
  • Fewer emotional responses, such as anger and frustration
  • More energy
  • Improved concentration
  • Greater ability to handle problems
  • More efficiency in daily activities
Types of relaxation techniques

Although health professionals such as complementary and alternative medicine practitioners, doctors and psychotherapists can teach relaxation techniques, you can also learn some on your own. Relaxation techniques usually involve refocusing your attention to something calming and increasing awareness of your body. It doesn't matter which technique you choose. What matters is that you try to practice relaxation regularly.

There are several main types of relaxation techniques, including:
  • Autogenic relaxation. Autogenic means something that comes from within you. In this technique, you use both visual imagery and body awareness to reduce stress. You repeat words or suggestions in your mind to help you relax and reduce muscle tension. You may imagine a peaceful place and then focus on controlled, relaxing breathing, slowing your heart rate, or different physical sensations, such as relaxing each arm or leg one by one.
  • Progressive muscle relaxation. In this technique, you focus on slowly tensing and then relaxing each muscle group. This helps you focus on the difference between muscle tension and relaxation, and you become more aware of physical sensations. You may choose to start by tensing and relaxing the muscles in your toes and progressively working your way up to your neck and head. Tense your muscles for at least five seconds and then relax for 30 seconds, and repeat.
  • Visualization. In this technique, you form mental images to take a visual journey to a peaceful, calming place or situation. Try to use as many senses as you can, including smells, sights, sounds and textures. If you imagine relaxing at the ocean, for instance, think about the warmth of the sun, the sound of crashing waves, the feel of the grains of sand and the smell of salt water. You may want to close your eyes, sit in a quiet spot and loosen any tight clothing.
Other relaxation techniques include those you may be more familiar with, such as: Relaxation techniques take practice

As you learn relaxation techniques, you'll become more aware of muscle tension and other physical sensations of stress. Once you know what the stress response feels like, you can make a conscious effort to practice a relaxation technique the moment your muscles start to tense. This can prevent stress from spiraling out of control.

Remember that relaxation techniques are skills. And as with any skill, your ability to relax improves with practice. Be patient with yourself. Stay motivated to reduce the negative impact of stress on your body and to experience a greater sense of calm in your life.

And bear in mind that some people, especially those with significant psychological problems and a history of abuse, may experience feelings of emotional discomfort during relaxation exercises. Although this is rare, if you experience emotional discomfort during relaxation exercises, stop what you're doing and consider talking to your health care professional.
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