Many forms of insomnia are in one way or another related to the improper function of your circadian rhythm. Most people associate the circadian rhythm with a time of day, but in reality the circadian rhythm has more to do with light and darkness. Every person has an internal clock that lets us know when it’s time to go to bed and wake up in the morning.
The circadian rhythm IS the internal clock.These rhythms are to some degree governed by hormones secreted by endocrine glands throughout the day. And our body temperature and overall mental acuity and alertness are only some of the factors affected by the circadian rhythm.
Since the circadian rhythm influences alertness and our energy level, for those with have a sleep disorder related to their circadian rhythm, their internal clock is “off” and they tend to feel alert when they should be tired or sleepy, and tired when they should have much energy. This is very common for those working the grave yard shift.
Light, as in bright natural sun light, is one of the largest factors of regulating your circadian rhythm. Not getting enough light for extended periods of time can cause low energy and fatigue. Those in northern climates can readily see this towards the end of the winter.
The most common way to help correct sleep disorders related to your circadian rhythm is to use special forms of light therapy to slowly reset your internal clock. Using light therapy is a very simple process. It requires the proper lightning and about 30 to 60 minutes of your time every day in conjunction with following a strict sleep regimen. The light used for this form of therapy is usually delivered using a special device known as a light box. Light boxes in most cases use specialized fluorescent light bulbs that have a LUX value between 5000 and 10,000.
The key to success with light therapy is to time the light exposure correctly depending on your particular situation.
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