Your circadian rhythm and it’s level of function is closely connected to insomnia. While it is commonly believed that the circadian rhythm has to do with the time of day, it has a lot to do with the amount of light or darkness. We all have a clock inside that gives us a nudge when it is time to go to sleep for the night and when it is time to get up.

This internal clock within our body controls what is known as the circadian rhythm. These rhythms are associated with the regulation of many hormones that are released within our body throughout the day. For example, our body’s temperature and overall alertness are key factors directly affected by our circadian rhythm.

The circadian rhythm is partially responsible for us feeling sleepy or sluggish with low energy, certain times during the 24 hour cycle, and for having abundant energy other times during the cycle. Those with a sleeping disorder related to their circadian rhythm tend to feel tired when they should be alert and vice versa. Those working the night shift tend to suffer from this type of sleep disorder.

One of the biggest factors in regulating your circadian rhythms is how much exposure you get to very bright light, especially sunlight. When you don’t get enough light over a long period of time, such as during the winter, you may notice that you tend to feel more fatigued or have less energy when compared to the spring and summer.

Light therapy, using special types of light with specific wavelengths simulating natural light can be used to slowly reset the internal clock. The light therapy is easy and pleasant and requires 30-60 minutes of exposure in conjunction with a strict sleeping schedule. The light is usually delivered using specifically designed lights.

To be successful with the light therapy the most important aspect is to time the light exposure correctly.Proper timing will be based on not only your schedule but also the type of insomnia.